{"title":"Hayward H-Series Millivolt \/ Electronic Heater (ED1 Style) Replacement Parts","description":"\u003cp\u003eInteractive exploded-view parts diagram for Hayward H-Series millivolt and electronic ignition heaters (ED1 style, 150K-400K BTU). Click any numbered part to see the part number, price and stock. Common replacements include the pilot, thermopile, gas valve, pressure switch, high limits and header parts. Not sure which part you need? Call us or bring the old part into any of our stores and we'll match it.\u003c\/p\u003e","products":[{"product_id":"haywardhseriesheaterthermostatwknobhaxtst1930hpphaxtst1930","title":"Hayward H-Series Heater Thermostat w\/ Knob | HAXTST1930","description":"\u003cdiv\u003e\n\u003ch2\u003eHayward HAXTST1930 – Thermostat Kit with Control Knob\u003c\/h2\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe Hayward HAXTST1930 is an OEM replacement thermostat kit designed for Hayward H-Series pool heaters. It restores accurate temperature adjustment and dependable heater control when the original thermostat or knob becomes worn, damaged, or unresponsive.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOEM thermostat assembly designed specifically for Hayward H-Series heaters.\u003c\/li\u003e\n\u003cli\u003eIncludes thermostat unit, mounting hardware, and replacement temperature control knob.\u003c\/li\u003e\n\u003cli\u003eRestores proper temperature regulation for safe and efficient heater operation.\u003c\/li\u003e\n\u003cli\u003eDurable construction suited for long-term exposure inside heater cabinets.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePart Number: HAXTST1930\u003c\/li\u003e\n\u003cli\u003eApplication: Temperature control thermostat for H-Series pool and spa heaters\u003c\/li\u003e\n\u003cli\u003eComponents Included: Thermostat assembly, control knob, and mounting bracket\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cp\u003eThis thermostat kit fits select Hayward H-Series heaters, including various induced-draft and electronic\/millivolt models. It is used when the temperature knob fails, the thermostat no longer responds accurately, or when corrosion or mechanical wear affects proper heater control. Always check your heater’s model plate to ensure correct fit before purchasing.\u003c\/p\u003e\n\u003ch3\u003eInstallation Instructions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eShut off power and gas supply to the heater before beginning service.\u003c\/li\u003e\n\u003cli\u003eRemove the front or side access panel to locate the existing thermostat assembly.\u003c\/li\u003e\n\u003cli\u003eDisconnect wiring from the old thermostat and remove mounting hardware.\u003c\/li\u003e\n\u003cli\u003eInstall the new HAXTST1930 thermostat, attach the control knob, and reconnect wiring as labeled.\u003c\/li\u003e\n\u003cli\u003eReinstall the access panel, restore power and gas, and test heater operation by adjusting the temperature knob.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTroubleshooting\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeater does not respond to temperature changes:\u003c\/strong\u003e Ensure thermostat wiring is securely connected and that the knob is properly attached.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature fluctuates or cycles:\u003c\/strong\u003e Confirm proper sensor placement and verify adequate water flow through the heater.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo heat output:\u003c\/strong\u003e Check safety switches, thermostat installation, and verify that gas and power are restored.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eMaintenance Tip\u003c\/h3\u003e\n\u003cp\u003eInspect the thermostat and control knob annually for wear, corrosion, or loose connections. Keeping these components in good condition ensures precise temperature control and extends the life of your pool heater.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":52335996731708,"sku":"HAXTST1930","price":74.99,"currency_code":"USD","in_stock":true}]},{"product_id":"haywardhseriesheatertemperaturelimiterskithaxtlk1930hpphaxtlk1930","title":"Hayward H-Series Heater Temperature Limiters Kit | HAXTLK1930","description":"\u003cdiv\u003e\n\u003ch1\u003eHayward HAXTLK1930 Temperature Limiters Kit\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e HAXTLK1930\u003c\/p\u003e\n\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cp\u003eThis genuine Hayward kit contains temperature limiters used to control and safeguard your pool or spa heater’s operation by preventing overheating. The kit includes one manual-reset and two auto-reset high-limit switches designed for the H-Series heater line.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for Hayward H-Series in-ground pool and spa heaters including ED1 (millivolt\/electronic) and ED2 (electronic ignition) models.\u003c\/li\u003e\n\u003cli\u003eSuitable for natural gas and propane models of the H-Series heater line such as H150, H200, H250, H300, H350, H400, etc.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFeatures \u0026amp; Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOEM Hayward replacement kit for reliable fit and operation.\u003c\/li\u003e\n\u003cli\u003eIncludes three high-limit switches (one manual reset, two auto reset) to protect heater against over-temperature conditions.\u003c\/li\u003e\n\u003cli\u003eEnsures proper safety operation in compliance with heater manufacturer’s requirements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003cp\u003eBefore installation, turn off all power and gas to the heater and allow the unit to cool. Remove the heater access panel and locate the existing high-limit switches. Carefully disconnect wiring, noting terminals, and remove the old limiters. Install the new kit by securing each limiter in the same location and reconnect wiring according to original layout. Restore gas and power, then cycle the heater and verify that no over-temperature shutdowns occur under normal operation.\u003c\/p\u003e\n\u003ch2\u003eMaintenance Tip\u003c\/h2\u003e\n\u003cp\u003eCheck heater high-limit switch function each season. If the heater frequently shuts off due to a high-limit trip or if you observe signs of switch failure (such as corrosion or physical damage), replace the limiters promptly. Using the OEM HAXTLK1930 kit helps maintain safe and reliable operation of your H-Series heater.\u003c\/p\u003e\n\u003cp\u003eSKU: HAXTLK1930\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":52336010723644,"sku":"HAXTLK1930","price":89.99,"currency_code":"USD","in_stock":true}]},{"product_id":"haywardhseriespoolheateronoffswitchchxtsw1930hppchxtsw1930","title":"Hayward H-Series Pool Heater On\/Off Switch | CHXTSW1930","description":"\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\u003c\/p\u003e\n\u003ch2\u003eHayward CHXTSW1930 On\/Off Rocker Switch - Genuine Replacement for H-Series Pool Heaters\u003c\/h2\u003e\n\u003cp\u003eThis genuine Hayward on\/off rocker switch is a direct replacement for worn or damaged switches on Hayward H-Series pool and spa heaters. The durable 2-pin rocker design provides reliable operation and easy control of your heater system. Built to withstand the demands of pool equipment environments, this switch ensures safe and dependable heater operation.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Hayward OEM Part\u003c\/strong\u003e - Factory direct replacement ensures proper fit and function\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-Pin Rocker Design\u003c\/strong\u003e - Simple on\/off operation with clear labeling\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Construction\u003c\/strong\u003e - Built to withstand heat, moisture, and outdoor conditions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy Installation\u003c\/strong\u003e - Direct replacement installs quickly with basic tools\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal Compatibility\u003c\/strong\u003e - Works with multiple H-Series heater models\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtective Cover\u003c\/strong\u003e - Some versions include clear rubber boot for added protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatible Heater Models\u003c\/h3\u003e\n\u003cp\u003eThis switch is compatible with the following Hayward heater series:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eH-Series Millivolt Models:\u003c\/strong\u003e H1501, H150P1, H2001, H200P1, H2501, H250P1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eH-Series Induced Draft Models:\u003c\/strong\u003e H100ID1, H100IDP1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eH-Series ED1 Models:\u003c\/strong\u003e Various induced draft heaters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComfortZone (CZ) Series:\u003c\/strong\u003e All CZ heater models\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeatMaster 2 (HM2) Series:\u003c\/strong\u003e All HM2 heater models\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeatPro Models:\u003c\/strong\u003e Compatible HeatPro heater models\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Hayward Pool Products\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e CHXTSW1930\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 610377003247\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSwitch Type:\u003c\/strong\u003e 2-pin rocker switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e On\/Off control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical Rating:\u003c\/strong\u003e AC 250V\/16A, 125V\/20A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSwitch Model:\u003c\/strong\u003e KCD3-101 rocker switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 2 pounds (packaged)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen to Replace Your Heater Switch\u003c\/h3\u003e\n\u003cp\u003eReplace your on\/off switch if you experience any of these issues:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSwitch fails to turn heater on or off\u003c\/li\u003e\n\u003cli\u003eSwitch feels loose or wobbly in the mounting hole\u003c\/li\u003e\n\u003cli\u003eVisible cracking or damage to the switch housing\u003c\/li\u003e\n\u003cli\u003eSwitch toggle breaks off or becomes difficult to operate\u003c\/li\u003e\n\u003cli\u003eIntermittent heater operation when toggling switch\u003c\/li\u003e\n\u003cli\u003eElectrical arcing or burning smell near switch\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eALWAYS turn off power\u003c\/strong\u003e at the breaker before replacing the switch\u003c\/li\u003e\n\u003cli\u003eRemove heater front panel to access switch mounting location\u003c\/li\u003e\n\u003cli\u003eNote wire connections before removing old switch\u003c\/li\u003e\n\u003cli\u003eConnect wires to new switch in same configuration as original\u003c\/li\u003e\n\u003cli\u003eEnsure switch snaps securely into mounting hole\u003c\/li\u003e\n\u003cli\u003eTest operation before reassembling heater panel\u003c\/li\u003e\n\u003cli\u003eProfessional installation recommended if you're not comfortable working with electrical components\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSafety Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThis component involves electrical connections - turn off all power before servicing\u003c\/li\u003e\n\u003cli\u003eVerify compatibility with your specific heater model before ordering\u003c\/li\u003e\n\u003cli\u003eIf heater fails to operate after switch replacement, check other components and consult a qualified technician\u003c\/li\u003e\n\u003cli\u003eNever bypass or modify safety switches\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTroubleshooting Tips\u003c\/h3\u003e\n\u003cp\u003eIf your heater won't turn on after installing the new switch:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVerify power is turned back on at the breaker\u003c\/li\u003e\n\u003cli\u003eCheck that wire connections are secure\u003c\/li\u003e\n\u003cli\u003eEnsure wires are connected to correct terminals\u003c\/li\u003e\n\u003cli\u003eConfirm switch is fully seated in mounting hole\u003c\/li\u003e\n\u003cli\u003eTest with a multimeter to verify switch continuity\u003c\/li\u003e\n\u003cli\u003eCheck other safety switches and controls that may prevent heater operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eNote: This is an electrical component. If you're not comfortable working with electrical systems, hire a qualified pool heater technician to perform the installation. Always consult your heater's service manual before attempting repairs.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eSKU: CHXTSW1930\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":52336012853564,"sku":"CHXTSW1930","price":22.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/3280\/9276\/files\/hayward-h-series-pool-heater-onoff-switch-chxtsw1930-heater-parts-7613816.jpg?v=1761744484"},{"product_id":"haywardbypassvalvekithaxbpk1931hpphaxbpk1931","title":"Hayward Bypass Valve Kit | HAXBPK1931","description":"\u003cdiv class=\"product-description\"\u003e\n\n  \u003ch2\u003eHayward HAXBPK1931 Bypass Kit (Old Style Header) — H-Series \/ ED1 (Pre-10\/28\/2000)\u003c\/h2\u003e\n\n  \u003cp\u003e\n    The Hayward \u003cstrong\u003eHAXBPK1931\u003c\/strong\u003e is an OEM \u003cstrong\u003eheater bypass kit\u003c\/strong\u003e designed for Hayward\n    \u003cstrong\u003eH-Series\u003c\/strong\u003e gas pool heaters that use the \u003cstrong\u003eold style header\u003c\/strong\u003e. The bypass assembly helps regulate internal\n    water flow through the heater’s heat exchanger, supporting stable operation and helping protect the exchanger under varying flow conditions.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eFits \/ Compatibility\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eHayward \u003cstrong\u003eH-Series Millivolt \u0026amp; Electronic Ignition (ED1 style)\u003c\/strong\u003e heaters made \u003cstrong\u003ebefore 10\/28\/2000\u003c\/strong\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCommon compatible ED1 models include: \u003cstrong\u003eH1501\u003c\/strong\u003e, \u003cstrong\u003eH2001\u003c\/strong\u003e, \u003cstrong\u003eH2501\u003c\/strong\u003e (verify heater data plate)\u003c\/li\u003e\n    \u003cli\u003eAlso commonly referenced for select \u003cstrong\u003eH-Series Induced Draft\u003c\/strong\u003e heater applications that use the old style header\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cp\u003e\n    \u003cstrong\u003eFit tip:\u003c\/strong\u003e Hayward has different bypass kits depending on heater generation\/header style. Confirm your heater manufacture\n    date and header style before ordering (this kit is for the \u003cstrong\u003eolder\u003c\/strong\u003e style configuration).\n  \u003c\/p\u003e\n\n  \u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eBlack plastic \u003cstrong\u003ebypass baffle\u003c\/strong\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eRound bypass end\u003c\/strong\u003e (brass)\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBypass shaft and plug\u003c\/strong\u003e (brass)\u003c\/li\u003e\n    \u003cli\u003e\u003cstrong\u003eBypass spring\u003c\/strong\u003e\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHeader O-ring\u003c\/strong\u003e (commonly referenced as \u003cstrong\u003eHAXHOR1930\u003c\/strong\u003e)\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eCommon Reasons to Replace\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eHeater header service where the bypass parts are worn, damaged, or missing\u003c\/li\u003e\n    \u003cli\u003eRecurring header leaks traced to a flattened or damaged header O-ring\u003c\/li\u003e\n    \u003cli\u003eFlow-related heater issues where inspection shows a stuck or deteriorated bypass assembly\u003c\/li\u003e\n    \u003cli\u003ePreventive rebuild on older H-Series heaters to restore proper internal flow control\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eSpecs (Quick Reference)\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003ePart Number: \u003cstrong\u003eHAXBPK1931\u003c\/strong\u003e\n\u003c\/li\u003e\n    \u003cli\u003ePart Type: \u003cstrong\u003eHeater Bypass Kit (Old Style Header)\u003c\/strong\u003e\n\u003c\/li\u003e\n    \u003cli\u003ePool Type: \u003cstrong\u003eIn-Ground\u003c\/strong\u003e\n\u003c\/li\u003e\n    \u003cli\u003eApprox. Shipping Weight: \u003cstrong\u003e14.4 lb\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eTurn off power to the heater and pump, and allow the heater to cool before servicing.\u003c\/li\u003e\n    \u003cli\u003eRelieve system pressure before opening the header\/union area.\u003c\/li\u003e\n    \u003cli\u003eClean header sealing surfaces and O-ring grooves before installing new components.\u003c\/li\u003e\n    \u003cli\u003eUse a light coat of \u003cstrong\u003esilicone-based\u003c\/strong\u003e lubricant on O-rings only (never petroleum-based).\u003c\/li\u003e\n    \u003cli\u003eIf the header is cracked\/warped or sealing surfaces are damaged, replacing the bypass kit alone may not stop leaks.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eRelated Products\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=HAXBPK1931\"\u003eHayward HAXBPK1931 Bypass Kit (search)\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=HAXHOR1930\"\u003eHayward HAXHOR1930 Header O-Ring (search)\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=HAXNNO1930\"\u003eHayward HAXNNO1930 Heater Union\/Nipple Kit (search)\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=HAXPSA1930\"\u003eHayward HAXPSA1930 Water Pressure Switch Assembly (search)\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=hayward%20h-series%20heater%20parts\"\u003eHayward H-Series Heater Parts (search)\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=silicone%20pool%20lube\"\u003eSilicone O-Ring \u0026amp; Gasket Lubricant (search)\u003c\/a\u003e\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr\u003e\n\n  \u003ch3\u003eMaintenance Tips\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eKeep filter pressure under control—dirty filters and restricted flow can cause heater issues that look like bypass problems.\u003c\/li\u003e\n    \u003cli\u003eMaintain balanced water chemistry to reduce scale in the heat exchanger and header area.\u003c\/li\u003e\n    \u003cli\u003eAfter any header service, run the system and check carefully for slow drips; small leaks can quickly leave mineral deposits and worsen sealing.\u003c\/li\u003e\n    \u003cli\u003eSupport nearby plumbing so the heater header\/unions aren’t under constant stress from misaligned pipes.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n\u003c\/div\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":52589938868540,"sku":"HAXBPK1931","price":69.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/3280\/9276\/files\/hayward-bypass-valve-kit-haxbpk1931-heater-parts-2961845.jpg?v=1772790146"},{"product_id":"haywardhseriesheaterburnertubehaxbrn1930hpphaxbrn1930","title":"Hayward H-Series Heater Burner Tube | HAXBRN1930","description":"\u003cdiv class=\"product-description\"\u003e\n\n  \u003ch2\u003eHayward HAXBRN1930 Main Burner \/ Burner Tube (H-Series Heaters)\u003c\/h2\u003e\n\n  \u003cp\u003e\n    The Hayward \u003cstrong\u003eHAXBRN1930\u003c\/strong\u003e is a genuine OEM \u003cstrong\u003emain burner (burner tube)\u003c\/strong\u003e used in compatible Hayward\n    \u003cstrong\u003eH-Series\u003c\/strong\u003e gas pool heaters. The burner tube is part of the combustion system that distributes gas\/air evenly for stable,\n    efficient heating. Replace a burner tube when it is corroded, warped, damaged, or when burner flames are uneven after other causes\n    (gas supply, orifice, air intake, soot, etc.) have been addressed.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eFits \/ Compatibility\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eHayward \u003cstrong\u003eH-Series ED1\u003c\/strong\u003e heater applications\u003c\/li\u003e\n    \u003cli\u003eHayward \u003cstrong\u003eH-Series ED2\u003c\/strong\u003e heater applications\u003c\/li\u003e\n    \u003cli\u003eHayward \u003cstrong\u003eH-Series Induced Draft\u003c\/strong\u003e heater applications\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eNot used\u003c\/strong\u003e on current model Hayward \u003cstrong\u003eH-Series FDN\u003c\/strong\u003e or \u003cstrong\u003eH-Series FDP\u003c\/strong\u003e heaters\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eImportant Quantity Note\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eThese burner tubes are commonly \u003cstrong\u003esold individually\u003c\/strong\u003e.\u003c\/li\u003e\n    \u003cli\u003eMany H-Series heaters use \u003cstrong\u003emultiple burner tubes\u003c\/strong\u003e (often \u003cstrong\u003e8 per heater\u003c\/strong\u003e, depending on model).\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eCommon Signs You Need to Replace a Burner Tube\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eVisible \u003cstrong\u003erust, scale, holes, or cracking\u003c\/strong\u003e on the burner\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eUneven flame\u003c\/strong\u003e, lifting flame, or unstable burner pattern\u003c\/li\u003e\n    \u003cli\u003ePersistent \u003cstrong\u003esooting\u003c\/strong\u003e or poor combustion after cleaning\/inspection\u003c\/li\u003e\n    \u003cli\u003eHeat output seems reduced and combustion components show heavy wear\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eSpecs (Quick Reference)\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003ePart Number: \u003cstrong\u003eHAXBRN1930\u003c\/strong\u003e\n\u003c\/li\u003e\n    \u003cli\u003ePart Type: \u003cstrong\u003eHeater Parts\u003c\/strong\u003e (Main Burner \/ Burner Tube)\u003c\/li\u003e\n    \u003cli\u003ePool Type: \u003cstrong\u003eIn-Ground\u003c\/strong\u003e\n\u003c\/li\u003e\n    \u003cli\u003eApprox. Shipping Weight: \u003cstrong\u003e34.5 lb\u003c\/strong\u003e\n\u003c\/li\u003e\n    \u003cli\u003eApprox. Shipping Dimensions: \u003cstrong\u003e16.5\" x 24\" x 28\"\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eGas service should be performed by a qualified technician.\u003c\/strong\u003e Improper installation can create fire, explosion, and carbon monoxide hazards.\u003c\/li\u003e\n    \u003cli\u003eInspect\/clean the combustion chamber, burners, and manifold area while servicing.\u003c\/li\u003e\n    \u003cli\u003eIf you’re replacing one burner due to heavy corrosion, inspect the rest of the burner set and consider replacing as a matched set if wear is similar.\u003c\/li\u003e\n    \u003cli\u003eAfter installation, the heater should be verified for proper ignition and flame characteristics.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eRelated Products\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=HAXBRN1930\"\u003eHayward HAXBRN1930 (search)\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=Hayward%20H-Series%20heater%20parts\"\u003eHayward H-Series Heater Parts (search)\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=HAXHLI1930\"\u003eHayward HAXHLI1930 Hi-Limit Switch 135°F (search)\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=HAXPSA1930\"\u003eHayward HAXPSA1930 Pressure Switch Assembly (search)\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=IDXCNK1933\"\u003eHayward IDXCNK1933 NG-to-LP Conversion Kit (100K ID) (search)\u003c\/a\u003e\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr\u003e\n\n  \u003ch3\u003eMaintenance Tips\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eKeep the heater area clear for proper airflow and safe combustion.\u003c\/li\u003e\n    \u003cli\u003eMaintain balanced water chemistry to reduce scale and corrosion that can shorten heater life.\u003c\/li\u003e\n    \u003cli\u003eIf you notice flame problems or soot, stop using the heater and have the gas\/combustion system inspected.\u003c\/li\u003e\n    \u003cli\u003eKeep your filter clean and flow correct—low flow can cause nuisance shutdowns that look like heater problems.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n\u003c\/div\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":52589938901308,"sku":"HAXBRN1930","price":94.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/3280\/9276\/files\/hayward-h-series-heater-burner-tube-haxbrn1930-heater-parts-5710295.jpg?v=1772790145"},{"product_id":"haywardhseriesheaternaturalgasvalve150400mvhaxgsv0001hpphaxgsv0001","title":"Hayward H-Series Heater Natural Gas Valve 150-400 MV | HAXGSV0001","description":"\u003cdiv class=\"product-description\"\u003e\n\n  \u003ch2\u003eHayward HAXGSV0001 Millivolt Natural Gas Valve (MV) — H-Series 150–400 (ED1 Style)\u003c\/h2\u003e\n\n  \u003cp\u003e\n    The Hayward \u003cstrong\u003eHAXGSV0001\u003c\/strong\u003e is a genuine OEM \u003cstrong\u003emillivolt (MV) natural gas valve\u003c\/strong\u003e used on select Hayward\n    \u003cstrong\u003eH-Series\u003c\/strong\u003e pool heaters. This valve regulates the flow of \u003cstrong\u003enatural gas\u003c\/strong\u003e to the burner system. It is the correct\n    style for \u003cstrong\u003emillivolt\u003c\/strong\u003e heaters (powered by a thermopile\/thermal generator), not electronic dual-stage systems.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eFits \/ Compatibility\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eHayward \u003cstrong\u003eH-Series Millivolt (MV)\u003c\/strong\u003e heaters in the \u003cstrong\u003e150,000–400,000 BTU\u003c\/strong\u003e range\u003c\/li\u003e\n    \u003cli\u003eCommonly listed for \u003cstrong\u003eED1-style\u003c\/strong\u003e heater models, including:\n      \u003cstrong\u003eH150ED1\u003c\/strong\u003e, \u003cstrong\u003eH200ED1\u003c\/strong\u003e, \u003cstrong\u003eH250ED1\u003c\/strong\u003e, \u003cstrong\u003eH300ED1\u003c\/strong\u003e, \u003cstrong\u003eH350ED1\u003c\/strong\u003e, \u003cstrong\u003eH400ED1\u003c\/strong\u003e\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cp\u003e\n    \u003cstrong\u003eFit tip:\u003c\/strong\u003e Confirm your heater is a \u003cstrong\u003emillivolt (MV)\u003c\/strong\u003e model and uses \u003cstrong\u003enatural gas\u003c\/strong\u003e (not propane).\n    Gas valves are not interchangeable between fuel types or between MV vs electronic\/dual-stage heater configurations.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eWhat It Does\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eControls and regulates \u003cstrong\u003enatural gas flow\u003c\/strong\u003e to the burner system\u003c\/li\u003e\n    \u003cli\u003eWorks with the heater’s \u003cstrong\u003emillivolt safety circuit\u003c\/strong\u003e (thermopile-powered systems)\u003c\/li\u003e\n    \u003cli\u003eHelps maintain stable heater operation when the correct gas supply and manifold settings are present\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eCommon Reasons to Replace\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eHeater will not light or will not stay running after troubleshooting confirms proper water flow and ignition components\u003c\/li\u003e\n    \u003cli\u003eIntermittent shutdowns linked to a failing valve (after verifying thermopile output and wiring integrity)\u003c\/li\u003e\n    \u003cli\u003eGas valve is leaking, sticking, or has damaged terminals\/valve body\u003c\/li\u003e\n    \u003cli\u003eValve failure discovered during heater service or refurbishment\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e1 OEM \u003cstrong\u003eHAXGSV0001\u003c\/strong\u003e millivolt natural gas valve\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eImportant Installation Notes\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\u003cstrong\u003eGas components should be serviced by a qualified technician.\u003c\/strong\u003e\u003c\/li\u003e\n    \u003cli\u003eAfter installation, the system must be \u003cstrong\u003eleak tested\u003c\/strong\u003e and verified for correct operation.\u003c\/li\u003e\n    \u003cli\u003eConfirm proper \u003cstrong\u003egas supply type\u003c\/strong\u003e (Natural Gas), \u003cstrong\u003einlet pressure\u003c\/strong\u003e, and heater model compatibility before ordering.\u003c\/li\u003e\n    \u003cli\u003eIf a new valve doesn’t resolve ignition issues, verify the \u003cstrong\u003ethermopile output\u003c\/strong\u003e, safety switches, wiring, and gas supply before further parts replacement.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eRelated Products\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=HAXGSV0001\"\u003eHayward HAXGSV0001 Gas Valve (search)\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=hayward%20h-series%20thermopile\"\u003eHayward H-Series Thermopiles \/ Generators (search)\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=hayward%20h-series%20pilot\"\u003eHayward H-Series Pilot \u0026amp; Ignition Parts (search)\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=HAXPSA1930\"\u003eHayward HAXPSA1930 Pressure Switch Assembly (search)\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=hayward%20h-series%20heater%20parts\"\u003eHayward H-Series Heater Parts (search)\u003c\/a\u003e\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr\u003e\n\n  \u003ch3\u003eMaintenance Tips\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eKeep the heater area clear for proper airflow and safe operation.\u003c\/li\u003e\n    \u003cli\u003eMaintain proper water flow (clean filter and baskets) to avoid nuisance shutdowns that can look like a gas\/ignition problem.\u003c\/li\u003e\n    \u003cli\u003eIf ignition becomes inconsistent, verify gas supply, thermopile output, and safety switch operation before replacing major components.\u003c\/li\u003e\n    \u003cli\u003eMaintain balanced water chemistry to reduce scaling inside the heater and extend overall heater life.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n\u003c\/div\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":52589938934076,"sku":"HAXGSV0001","price":469.99,"currency_code":"USD","in_stock":true}]},{"product_id":"haywardhseriesheater135fhilimithaxhli1930hpphaxhli1930","title":"Hayward H-Series Heater 135F Hi-Limit | HAXHLI1930","description":"\u003cdiv class=\"product-description\"\u003e\n\n  \u003ch2\u003eHayward HAXHLI1930 Hi-Limit Switch (135°F) for H-Series Pool Heaters\u003c\/h2\u003e\n\n  \u003cp\u003e\n    The Hayward \u003cstrong\u003eHAXHLI1930\u003c\/strong\u003e is a genuine OEM \u003cstrong\u003e135°F high limit switch\u003c\/strong\u003e (hi-limit) used on compatible\n    Hayward \u003cstrong\u003eH-Series\u003c\/strong\u003e pool and spa heaters. This safety switch helps protect the heater by shutting the unit down if\n    internal water temperature rises above the safe limit—commonly due to low water flow, blocked circulation, or scaling.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eFits \/ Compatibility\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eCommonly used on Hayward \u003cstrong\u003eH-Series ED1\u003c\/strong\u003e and \u003cstrong\u003eED2\u003c\/strong\u003e style heaters\u003c\/li\u003e\n    \u003cli\u003eAlso commonly listed for Hayward \u003cstrong\u003eH-Series Induced Draft\u003c\/strong\u003e and \u003cstrong\u003eLow NOx\u003c\/strong\u003e heater applications (model\/revision dependent)\u003c\/li\u003e\n    \u003cli\u003eWorks as the \u003cstrong\u003e135°F hi-limit\u003c\/strong\u003e device (verify the temperature rating printed on your existing switch)\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cp\u003e\n    \u003cstrong\u003eFit tip:\u003c\/strong\u003e Heater parts can vary by revision. Confirm your heater model number from the data plate and match the\n    hi-limit temperature rating before ordering.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eWhat It Fixes\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eHeater shutting down on high-limit safety due to a failed or out-of-spec switch\u003c\/li\u003e\n    \u003cli\u003eIntermittent heating caused by unstable switch contact\u003c\/li\u003e\n    \u003cli\u003ePreventive replacement during heater service when the original switch is corroded or damaged\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eCommon Causes of High-Limit Trips (Before Replacing Parts)\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eDirty filter or clogged pump basket reducing flow\u003c\/li\u003e\n    \u003cli\u003eClosed\/partially closed valves or bypass settings restricting circulation\u003c\/li\u003e\n    \u003cli\u003eLow water level or suction-side air leak causing poor flow\u003c\/li\u003e\n    \u003cli\u003eScale buildup inside the heat exchanger creating localized overheating\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eSpecs (Quick Reference)\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003ePart Number: \u003cstrong\u003eHAXHLI1930\u003c\/strong\u003e\n\u003c\/li\u003e\n    \u003cli\u003eType: \u003cstrong\u003eHi-Limit Safety Switch\u003c\/strong\u003e\n\u003c\/li\u003e\n    \u003cli\u003eTrip Temperature: \u003cstrong\u003e135°F\u003c\/strong\u003e\n\u003c\/li\u003e\n    \u003cli\u003ePart Type: \u003cstrong\u003eHeater Parts\u003c\/strong\u003e\n\u003c\/li\u003e\n    \u003cli\u003ePool Type: \u003cstrong\u003eIn-Ground\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePower off\u003c\/strong\u003e the heater at the breaker before service.\u003c\/li\u003e\n    \u003cli\u003eLabel or photograph wire locations before disconnecting.\u003c\/li\u003e\n    \u003cli\u003eIf the heater continues to trip a new hi-limit, diagnose the \u003cstrong\u003eroot cause\u003c\/strong\u003e (flow restriction, scaling, bypass, pump performance) to prevent repeat shutdowns.\u003c\/li\u003e\n    \u003cli\u003eInstallation should be performed by a qualified technician.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eRelated Products\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=HAXHLI1930\"\u003eHayward HAXHLI1930 Hi-Limit Switch (search)\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=HAXPSA1930\"\u003eHayward HAXPSA1930 Water Pressure Switch Assembly (search)\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=HAXHOR1930\"\u003eHayward HAXHOR1930 Header O-Ring (search)\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=HAXNNO1930\"\u003eHayward HAXNNO1930 Heater Union\/Nipple Kit (search)\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=hayward%20h-series%20heater%20parts\"\u003eHayward H-Series Heater Parts (search)\u003c\/a\u003e\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr\u003e\n\n  \u003ch3\u003eMaintenance Tips\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eIf you see repeated hi-limit shutdowns, check \u003cstrong\u003efilter pressure\u003c\/strong\u003e and clean\/ backwash as needed—low flow is the most common cause.\u003c\/li\u003e\n    \u003cli\u003eMaintain balanced water chemistry to reduce \u003cstrong\u003escale\u003c\/strong\u003e that can overheat the heat exchanger.\u003c\/li\u003e\n    \u003cli\u003eVerify proper bypass\/valve settings after any plumbing changes to keep heater flow within its required range.\u003c\/li\u003e\n    \u003cli\u003eKeep the heater cabinet clean and ensure ventilation is not blocked.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n\u003c\/div\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":52589938966844,"sku":"HAXHLI1930","price":40.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/3280\/9276\/files\/hayward-h-series-heater-135f-hi-limit-haxhli1930-heater-parts-3207735.jpg?v=1772790144"},{"product_id":"haywardhseriesheaterheaderoringhaxhor1930hpphaxhor1930","title":"Hayward H-Series Heater Header O-Ring | HAXHOR1930","description":"\u003cdiv class=\"product-description\"\u003e\n\n  \u003ch2\u003eHayward HAXHOR1930 Header O-Ring (Replacement Seal for H-Series Pool Heaters)\u003c\/h2\u003e\n\n  \u003cp\u003e\n    The Hayward \u003cstrong\u003eHAXHOR1930\u003c\/strong\u003e is an OEM \u003cstrong\u003eheader O-ring\u003c\/strong\u003e used on compatible Hayward\n    \u003cstrong\u003eH-Series\u003c\/strong\u003e pool and spa heaters. This O-ring seals the heater’s \u003cstrong\u003ewater header\u003c\/strong\u003e to the internal\n    water\/heat exchanger connection to help prevent external water leaks at the header joint.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eFits \/ Compatibility\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eCommonly used on Hayward \u003cstrong\u003eH-Series\u003c\/strong\u003e heaters including \u003cstrong\u003eED1\u003c\/strong\u003e and \u003cstrong\u003eED2\u003c\/strong\u003e style models\u003c\/li\u003e\n    \u003cli\u003eCommonly listed for Hayward H-Series models such as \u003cstrong\u003eH150\u003c\/strong\u003e, \u003cstrong\u003eH200\/H210\/H250\u003c\/strong\u003e, \u003cstrong\u003eH300\/H350\u003c\/strong\u003e, and \u003cstrong\u003eH400\u003c\/strong\u003e (Millivolt\/Electronic Ignition)\u003c\/li\u003e\n    \u003cli\u003eAlso commonly listed for select \u003cstrong\u003eH-Series Induced Draft\u003c\/strong\u003e and \u003cstrong\u003eLow NOx\u003c\/strong\u003e H-Series heater applications (model\/revision dependent)\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cp\u003e\n    \u003cstrong\u003eFit tip:\u003c\/strong\u003e Heater parts can vary by revision. Match your heater model number from the data plate and confirm\n    \u003cstrong\u003eHAXHOR1930\u003c\/strong\u003e is shown on the correct parts diagram for your unit.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eWhat It Fixes\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eWater leaking at or around the heater \u003cstrong\u003eheader connection\u003c\/strong\u003e\n\u003c\/li\u003e\n    \u003cli\u003eSeepage that leaves mineral deposits or corrosion stains around the header area\u003c\/li\u003e\n    \u003cli\u003ePreventive replacement during header service, heat exchanger service, or union replacement\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e1 Hayward \u003cstrong\u003eHAXHOR1930\u003c\/strong\u003e header O-ring\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eTurn \u003cstrong\u003epower and gas\u003c\/strong\u003e off to the heater and relieve system pressure before service.\u003c\/li\u003e\n    \u003cli\u003eClean the O-ring groove and mating surfaces thoroughly before installing the new seal.\u003c\/li\u003e\n    \u003cli\u003eLightly lubricate the O-ring with a \u003cstrong\u003esilicone-based\u003c\/strong\u003e pool lubricant to reduce pinching and improve sealing.\u003c\/li\u003e\n    \u003cli\u003eReassemble evenly and avoid overtightening that can distort the seal or damage plastic header components.\u003c\/li\u003e\n    \u003cli\u003eIf the header is warped\/cracked or sealing surfaces are damaged, replacing the O-ring alone may not stop leaks.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eRelated Products\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=HAXHOR1930\"\u003eHayward HAXHOR1930 Header O-Ring (search)\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=HAXNNO1930\"\u003eHayward HAXNNO1930 CPVC Heater Union\/Nipple Kit (search)\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=HAXPSA1930\"\u003eHayward HAXPSA1930 Water Pressure Switch Assembly (search)\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=silicone%20pool%20lube\"\u003eSilicone O-Ring \u0026amp; Gasket Lubricant (search)\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=hayward%20h-series%20heater%20parts\"\u003eHayward H-Series Heater Parts (search)\u003c\/a\u003e\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr\u003e\n\n  \u003ch3\u003eMaintenance Tips\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eKeep water chemistry balanced to reduce scale buildup that can damage seals and sealing surfaces.\u003c\/li\u003e\n    \u003cli\u003eInspect for small drips after startup—minor leaks can quickly become heavy leaks and leave mineral deposits that worsen sealing.\u003c\/li\u003e\n    \u003cli\u003eSupport nearby plumbing so heater unions and headers aren’t under constant stress from misaligned pipes.\u003c\/li\u003e\n    \u003cli\u003eIf you open a header for service, replace accessible O-rings during reassembly instead of reusing flattened seals.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n\u003c\/div\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":52589938999612,"sku":"HAXHOR1930","price":19.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/3280\/9276\/files\/hayward-h-series-heater-header-o-ring-haxhor1930-heater-parts-7300030.jpg?v=1772790143"},{"product_id":"haywardhseriesheaterpressureswitchassemblyhaxpsa1930hpphaxpsa1930","title":"Hayward H-Series Heater Pressure Switch Assembly | HAXPSA1930","description":"\u003cdiv class=\"product-description\"\u003e\n\n  \u003ch2\u003eHayward HAXPSA1930 Water Pressure Switch Assembly (Heater Safety Switch)\u003c\/h2\u003e\n\n  \u003cp\u003e\n    The Hayward \u003cstrong\u003eHAXPSA1930\u003c\/strong\u003e is a genuine OEM \u003cstrong\u003ewater pressure switch assembly\u003c\/strong\u003e used on compatible Hayward\n    \u003cstrong\u003eH-Series pool heaters\u003c\/strong\u003e. This safety switch verifies that the heater has adequate water flow\/pressure before allowing\n    ignition. If flow is too low (dirty filter, closed valve, pump issue, air in the system, etc.), the switch helps prevent heater\n    operation to protect internal components from overheating and damage.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eFits \/ Compatibility\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eCommonly used on Hayward \u003cstrong\u003eH-Series ED1 \/ ED2\u003c\/strong\u003e style heaters\u003c\/li\u003e\n    \u003cli\u003eAlso commonly listed for select Hayward \u003cstrong\u003eH-Series Induced Draft (IDL)\u003c\/strong\u003e heater applications\u003c\/li\u003e\n    \u003cli\u003eVerify your exact heater model and parts diagram to confirm compatibility before ordering (pressure switch assemblies can vary by model\/revision).\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eWhat It Fixes\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eHeater will not fire due to a failed or out-of-range pressure switch\u003c\/li\u003e\n    \u003cli\u003eIntermittent operation where the heater starts\/stops from unstable pressure switch contact\u003c\/li\u003e\n    \u003cli\u003eCorroded, leaking, or damaged pressure switch assembly found during service\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eKey Features\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOEM Hayward\u003c\/strong\u003e replacement assembly for reliable fit and operation\u003c\/li\u003e\n    \u003cli\u003eHelps confirm \u003cstrong\u003eadequate water flow\u003c\/strong\u003e before heater operation\u003c\/li\u003e\n    \u003cli\u003eCritical \u003cstrong\u003esafety component\u003c\/strong\u003e that protects the heater from low-flow conditions\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTurn off power\u003c\/strong\u003e to the heater at the breaker before servicing.\u003c\/li\u003e\n    \u003cli\u003eRelieve system pressure and follow your heater service manual for removal\/installation steps.\u003c\/li\u003e\n    \u003cli\u003eIf the heater still won’t fire after replacement, confirm proper \u003cstrong\u003epump flow\u003c\/strong\u003e, clean filter, open valves, and correct bypass settings.\u003c\/li\u003e\n    \u003cli\u003eInstallation and adjustment should be performed by a qualified technician.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eSpecs (Quick Reference)\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003ePart Number: \u003cstrong\u003eHAXPSA1930\u003c\/strong\u003e\n\u003c\/li\u003e\n    \u003cli\u003ePart Type: \u003cstrong\u003eHeater Parts\u003c\/strong\u003e (Water Pressure Switch Assembly)\u003c\/li\u003e\n    \u003cli\u003ePool Type: \u003cstrong\u003eIn-Ground\u003c\/strong\u003e\n\u003c\/li\u003e\n    \u003cli\u003eWarranty: \u003cstrong\u003e1-Year (Parts Only)\u003c\/strong\u003e\n\u003c\/li\u003e\n    \u003cli\u003eApprox. Shipping Dimensions: \u003cstrong\u003e5\" x 7\" x 17\"\u003c\/strong\u003e\n\u003c\/li\u003e\n    \u003cli\u003eApprox. Shipping Weight: \u003cstrong\u003e5 lb\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eRelated Products\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=HAXPSA1930\"\u003eHayward HAXPSA1930 (search)\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=Hayward%20H-Series%20heater%20parts\"\u003eHayward H-Series Heater Parts (search)\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=Hayward%20heater%20igniter\"\u003eHayward Heater Igniters (search)\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=Hayward%20heater%20flame%20sensor\"\u003eHayward Heater Flame Sensors (search)\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=pool%20filter%20pressure%20gauge\"\u003eFilter Pressure Gauges (search)\u003c\/a\u003e\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr\u003e\n\n  \u003ch3\u003eMaintenance Tips\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eIf your heater is tripping on pressure\/flow issues, start by cleaning the pump basket and filter, and confirm all suction\/return valves are fully open.\u003c\/li\u003e\n    \u003cli\u003eLow flow is often caused by a dirty filter, clogged baskets, air leaks on the suction side, or a partially closed valve.\u003c\/li\u003e\n    \u003cli\u003eKeep water chemistry balanced to reduce scale formation inside the heater and plumbing, which can restrict flow over time.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n\u003c\/div\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":52589939065148,"sku":"HAXPSA1930","price":65.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/3280\/9276\/files\/hayward-h-series-heater-pressure-switch-assembly-haxpsa1930-heater-parts-9474345.jpg?v=1772790141"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/3280\/9276\/collections\/hayward-h-series-ed1-heater-parts-diagram.png?v=1790637400","url":"https:\/\/aquapoolsupply.com\/collections\/parts-list-hayward-h-series-ed1-heater.oembed","provider":"Aqua Pool Supply","version":"1.0","type":"link"}