{"title":"Hayward H-Series Electronic Ignition Heater (ED2 Style) Replacement Parts","description":"\u003cp\u003eInteractive exploded-view parts diagram for Hayward H-Series electronic ignition heaters (ED2 style, 150K-400K BTU). Click any numbered part to see the part number, price and stock. Common replacements include the control module, ignitor, 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":"haywardhseriesfdheaterthermistorfdxlter1930hppfdxlter1930","title":"Hayward H-Series FD Heater Thermistor | FDXLTER1930","description":"\u003cdiv\u003e\n\u003ch1\u003eHayward FDXLTER1930 Thermistor\u003c\/h1\u003e\n\u003cp\u003eThe Hayward FDXLTER1930 thermistor is a genuine replacement sensor designed for use in Universal H-Series low-NOx pool heaters. It monitors water or system temperature to ensure accurate control and safe heater operation.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eReplacement thermistor for Universal H-Series heaters by Hayward.\u003c\/li\u003e\n\u003cli\u003eEnsures accurate temperature sensing for reliable heater operation.\u003c\/li\u003e\n\u003cli\u003eSupplied as an OEM part—fits multiple H-Series models.\u003c\/li\u003e\n\u003cli\u003eDesigned for in-ground pool heater systems and commercial or residential applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Details\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e FDXLTER1930\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 610377073790\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible With:\u003c\/strong\u003e Hayward Universal H-Series Low NOx models (e.g., H150FDN, H150FDP, H200FDN, H200FDP, H250FDN, H250FDP, H300FDN, H300FDP, H350FDN, H350FDP, H400FDN, H400FDP)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Pool and spa heater temperature sensor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eInstallation \u0026amp; Compatibility Notes\u003c\/h2\u003e\n\u003cp\u003eConfirm that your heater model matches one of the supported H-Series models. Replace the thermistor only when the heater is powered off and access to the sensor location is available. Proper wiring and connection according to the heater’s wiring diagram are essential to restore correct temperature sensing and safe operation.\u003c\/p\u003e\n\u003ch2\u003eMaintenance Tips\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eInspect the sensor wiring and connection for any signs of corrosion or damage.\u003c\/li\u003e\n\u003cli\u003eEnsure the sensor probe is correctly positioned and secured in the specified sensor port.\u003c\/li\u003e\n\u003cli\u003eIf the heater shows temperature errors or fails to up-rate temperature correctly, the thermistor may be the root cause.\u003c\/li\u003e\n\u003cli\u003eAlways restore correct system grounding and return covers after service.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy Choose This Part?\u003c\/h2\u003e\n\u003cp\u003eInstalling the correct sensor for your heater ensures the control board receives accurate temperature feedback, which supports efficient heating, safe operation, and protects the heat exchanger from over-temperature damage. The Hayward FDXLTER1930 offers a factory-matched replacement, maintaining system integrity and avoiding compatibility issues.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":52335994995004,"sku":"FDXLTER1930","price":44.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/3280\/9276\/files\/hayward-h-series-fd-heater-thermistor-fdxlter1930-heater-parts-6607653.jpg?v=1763501907"},{"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":"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":"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-ed2-heater-parts-diagram.png?v=1790637399","url":"https:\/\/aquapoolsupply.com\/collections\/parts-list-hayward-h-series-ed2-heater.oembed","provider":"Aqua Pool Supply","version":"1.0","type":"link"}