{"product_id":"pentair-air-blower-kit-for-mastertemp-400-77707-0253","title":"Pentair Air Blower Kit for Mastertemp 400 77707-0253","description":"\u003ch2\u003ePentair MasterTemp \u0026amp; Max-E-Therm 400K Natural Gas Heater Air Blower Kit | 77707-0253\u003c\/h2\u003e\n\n\u003cp\u003e\n    The \u003cstrong\u003ePentair 77707-0253 Combustion Air Blower Kit\u003c\/strong\u003e\n    is a genuine OEM replacement assembly designed for compatible\n    \u003cstrong\u003ePentair MasterTemp and Sta-Rite Max-E-Therm 400,000 BTU\n    natural gas pool and spa heaters\u003c\/strong\u003e.\n\u003c\/p\u003e\n\n\u003cp\u003e\n    The combustion blower supplies the airflow required by the\n    heater's gas burner system. It works with the heater's\n    combustion controls to support proper ignition and\n    operation.\n\u003c\/p\u003e\n\n\u003cp\u003e\n    Manufactured to Pentair's original equipment specifications,\n    this replacement blower kit is designed for servicing\n    compatible 400K BTU natural gas heaters with a failed\n    or damaged original blower.\n\u003c\/p\u003e\n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\n\u003cul\u003e\n    \u003cli\u003e\n        \u003cstrong\u003eGenuine Pentair OEM:\u003c\/strong\u003e\n        Original manufacturer combustion air blower replacement kit.\n    \u003c\/li\u003e\n\n    \u003cli\u003e\n        \u003cstrong\u003e400,000 BTU Heater Compatibility:\u003c\/strong\u003e\n        Designed for compatible 400K BTU natural gas heater models.\n    \u003c\/li\u003e\n\n    \u003cli\u003e\n        \u003cstrong\u003eMasterTemp Compatibility:\u003c\/strong\u003e\n        Fits specified Pentair MasterTemp 400NA heaters.\n    \u003c\/li\u003e\n\n    \u003cli\u003e\n        \u003cstrong\u003eMax-E-Therm Compatibility:\u003c\/strong\u003e\n        Fits specified Sta-Rite Max-E-Therm 400NA heaters.\n    \u003c\/li\u003e\n\n    \u003cli\u003e\n        \u003cstrong\u003eCombustion Air Supply:\u003c\/strong\u003e\n        Provides airflow for the heater's gas burner system.\n    \u003c\/li\u003e\n\n    \u003cli\u003e\n        \u003cstrong\u003eSingle-Voltage Blower Adapter:\u003c\/strong\u003e\n        Includes the blower adapter specified for compatible\n        Max-E-Therm applications.\n    \u003c\/li\u003e\n\n    \u003cli\u003e\n        \u003cstrong\u003eOEM Replacement:\u003c\/strong\u003e\n        Designed to replace the original blower assembly\n        requiring Pentair part number 77707-0253.\n    \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\n\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Pentair\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 77707-0253\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDistributor Part Number:\u003c\/strong\u003e STA-151-0253\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Combustion Air Blower Kit\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCompatible Heater Series:\u003c\/strong\u003e MasterTemp \/ Max-E-Therm\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHeater Capacity:\u003c\/strong\u003e 400,000 BTU\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFuel Type:\u003c\/strong\u003e Natural Gas\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCompatible MasterTemp Model:\u003c\/strong\u003e 400NA\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCompatible Max-E-Therm Model:\u003c\/strong\u003e 400NA\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Pool and Spa Gas Heater Burner System\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eParts Diagram Reference:\u003c\/strong\u003e Item #5\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDistributor-Listed Product Weight:\u003c\/strong\u003e 13 lb\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eShipping Dimensions:\u003c\/strong\u003e 12\" x 12\" x 12\"\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 022315322387\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePackage Quantity:\u003c\/strong\u003e 1 Air Blower Kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatible Pentair Pool and Spa Heaters\u003c\/h3\u003e\n\n\u003cp\u003e\n    Pentair 77707-0253 is identified for the following\n    natural gas heater applications:\n\u003c\/p\u003e\n\n\u003cul\u003e\n    \u003cli\u003ePentair MasterTemp 400NA Natural Gas Heater\u003c\/li\u003e\n    \u003cli\u003ePentair MasterTemp 400,000 BTU Natural Gas Models\u003c\/li\u003e\n    \u003cli\u003eSta-Rite Max-E-Therm 400NA Natural Gas Heater\u003c\/li\u003e\n    \u003cli\u003eSta-Rite Max-E-Therm 400,000 BTU Natural Gas Models\u003c\/li\u003e\n    \u003cli\u003eOther heater configurations specifically listing part 77707-0253\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\n    \u003cstrong\u003eCompatibility Notice:\u003c\/strong\u003e\n    Verify the heater model number, fuel type, manufacturing\n    revision, and original blower part number before ordering.\n    Different heater capacities and propane models require\n    different blower assemblies.\n\u003c\/p\u003e\n\n\u003ch3\u003eWhat Does a Pool Heater Combustion Blower Do?\u003c\/h3\u003e\n\n\u003cp\u003e\n    The combustion air blower is an essential component\n    of the gas burner system in compatible Pentair\n    MasterTemp and Sta-Rite Max-E-Therm heaters.\n\u003c\/p\u003e\n\n\u003cp\u003e\n    When the heater receives a call for heat, the\n    control system operates the combustion blower\n    as part of its ignition sequence.\n\u003c\/p\u003e\n\n\u003cp\u003e\n    The blower moves air through the combustion system,\n    providing the airflow required for the burner\n    to operate as designed.\n\u003c\/p\u003e\n\n\u003cp\u003e\n    Proper blower operation is important for reliable\n    heater ignition and combustion.\n\u003c\/p\u003e\n\n\u003ch3\u003eSigns of a Possible Combustion Blower Problem\u003c\/h3\u003e\n\n\u003cp\u003e\n    A malfunctioning combustion blower may cause\n    the heater to experience ignition or operating problems.\n\u003c\/p\u003e\n\n\u003cp\u003ePossible symptoms include:\u003c\/p\u003e\n\n\u003cul\u003e\n    \u003cli\u003eCombustion blower fails to start.\u003c\/li\u003e\n    \u003cli\u003eHeater does not complete its ignition sequence.\u003c\/li\u003e\n    \u003cli\u003eUnusual grinding or rattling noises from the blower.\u003c\/li\u003e\n    \u003cli\u003eBlower motor operates intermittently.\u003c\/li\u003e\n    \u003cli\u003eHeater repeatedly shuts down during startup.\u003c\/li\u003e\n    \u003cli\u003eAirflow-related faults or safety shutdowns.\u003c\/li\u003e\n    \u003cli\u003ePhysical damage to the blower housing or assembly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\n    \u003cstrong\u003eTroubleshooting:\u003c\/strong\u003e\n    These symptoms may also be caused by electrical problems,\n    control board faults, wiring issues, blocked venting,\n    or other heater safety components.\n\u003c\/p\u003e\n\n\u003cp\u003e\n    A qualified technician should diagnose the heater\n    before replacing the combustion blower.\n\u003c\/p\u003e\n\n\u003ch3\u003eNatural Gas vs. Propane Heater Blowers\u003c\/h3\u003e\n\n\u003cp\u003e\n    Pentair manufactures different combustion blower\n    assemblies for specific heater capacities and fuel types.\n\u003c\/p\u003e\n\n\u003cp\u003e\n    The \u003cstrong\u003e77707-0253\u003c\/strong\u003e is intended for specified\n    \u003cstrong\u003e400,000 BTU natural gas heaters\u003c\/strong\u003e.\n\u003c\/p\u003e\n\n\u003cul\u003e\n    \u003cli\u003e\n        \u003cstrong\u003e77707-0253:\u003c\/strong\u003e\n        400K BTU Natural Gas Combustion Air Blower Kit.\n    \u003c\/li\u003e\n\n    \u003cli\u003e\n        \u003cstrong\u003e77707-0256:\u003c\/strong\u003e\n        400K BTU Propane Combustion Air Blower Kit.\n    \u003c\/li\u003e\n\n    \u003cli\u003e\n        \u003cstrong\u003e77707-0251:\u003c\/strong\u003e\n        Blower kit for compatible 200K BTU natural gas heaters.\n    \u003c\/li\u003e\n\n    \u003cli\u003e\n        \u003cstrong\u003e77707-0252:\u003c\/strong\u003e\n        Blower kit for compatible 333K BTU Max-E-Therm\n        natural gas heaters.\n    \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\n    \u003cstrong\u003eImportant:\u003c\/strong\u003e\n    Blower assemblies must be matched to the heater's\n    specific model and fuel configuration.\n    Do not substitute a blower intended for another\n    heater capacity or fuel type.\n\u003c\/p\u003e\n\n\u003ch3\u003eRelated Pentair Heater Replacement Parts\u003c\/h3\u003e\n\n\u003cp\u003e\n    Aqua Pool Supply carries additional genuine Pentair\n    replacement parts for MasterTemp and Max-E-Therm heaters.\n\u003c\/p\u003e\n\n\u003cul\u003e\n    \u003cli\u003e\n        \u003ca href=\"https:\/\/aquapoolsupply.com\/collections\/all-pool-equipment-parts\/products\/pentaircombinationgascontrolvalvekit420010051spen420010051s\" title=\"Pentair 42001-0051S Combination Gas Control Valve Kit\"\u003e\n            \u003cstrong\u003ePentair 42001-0051S – Combination Gas Control Valve Kit\u003c\/strong\u003e\n        \u003c\/a\u003e\n        – Replacement gas control valve assembly for\n        compatible MasterTemp and Max-E-Therm heaters.\n    \u003c\/li\u003e\n\n    \u003cli\u003e\n        \u003ca href=\"https:\/\/aquapoolsupply.com\/products\/pentairmastertempstaritemaxethermthermalregulatorkit777070010pen777070010\" title=\"Pentair 77707-0010 Thermal Regulator Kit\"\u003e\n            \u003cstrong\u003ePentair 77707-0010 – Thermal Regulator Kit\u003c\/strong\u003e\n        \u003c\/a\u003e\n        – Replacement water temperature regulator\n        for compatible Pentair gas heaters.\n    \u003c\/li\u003e\n\n    \u003cli\u003e\n        \u003ca href=\"https:\/\/aquapoolsupply.com\/products\/pentairstaritemetalfluecollarformastertempmaxethermheater4x8777070077pen777070077\" title=\"Pentair 77707-0077 Metal Flue Collar\"\u003e\n            \u003cstrong\u003ePentair 77707-0077 – Metal Flue Collar, 4\" x 8\"\u003c\/strong\u003e\n        \u003c\/a\u003e\n        – Replacement venting component for specified\n        MasterTemp and Max-E-Therm heater installations.\n    \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePentair Heater Parts Diagrams\u003c\/h3\u003e\n\n\u003cp\u003e\n    Use Aqua Pool Supply's illustrated heater parts diagrams\n    to identify compatible burner system components.\n\u003c\/p\u003e\n\n\u003cul\u003e\n    \u003cli\u003e\n        \u003ca href=\"https:\/\/aquapoolsupply.com\/collections\/parts-list-pentair-mastertemp-heater\" title=\"Pentair MasterTemp Heater Replacement Parts Diagram\"\u003e\n            \u003cstrong\u003ePentair MasterTemp Heater Parts Diagram\u003c\/strong\u003e\n        \u003c\/a\u003e\n        – Find replacement combustion blowers, gas valves,\n        burner components, temperature sensors,\n        and other MasterTemp heater parts.\n    \u003c\/li\u003e\n\n    \u003cli\u003e\n        \u003ca href=\"https:\/\/aquapoolsupply.com\/collections\/parts-list-pentair-max-e-therm-heater\" title=\"Pentair Max-E-Therm Heater Replacement Parts Diagram\"\u003e\n            \u003cstrong\u003eSta-Rite Max-E-Therm Heater Parts Diagram\u003c\/strong\u003e\n        \u003c\/a\u003e\n        – Browse combustion blower assemblies, gas controls,\n        ignition components, and related replacement parts.\n    \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation and Service Recommendations\u003c\/h3\u003e\n\n\u003cp\u003e\n    Combustion blower replacement involves a gas-fired\n    heating appliance and should be performed by a\n    qualified pool heater service professional.\n\u003c\/p\u003e\n\n\u003cp\u003e\n    Before servicing, the technician must disconnect\n    electrical power, shut off the gas supply, and\n    follow Pentair's prescribed procedures.\n\u003c\/p\u003e\n\n\u003cp\u003e\n    The installation should include verification of\n    the correct blower assembly, electrical connections,\n    combustion air path, and applicable safety controls.\n\u003c\/p\u003e\n\n\u003cp\u003e\n    After installation, the heater must be inspected\n    and tested according to Pentair's service instructions.\n\u003c\/p\u003e\n\n\u003cp\u003e\n    \u003cstrong\u003eSafety:\u003c\/strong\u003e\n    Incorrect installation of combustion components\n    can create fire, gas leakage, or carbon monoxide hazards.\n    Never bypass heater safety controls or operate the\n    heater with damaged combustion or venting components.\n\u003c\/p\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\n\u003cp\u003e\n    \u003cstrong\u003eIncludes:\u003c\/strong\u003e\n    One (1) Genuine Pentair 77707-0253 Combustion\n    Air Blower Replacement Kit for compatible\n    400K BTU natural gas MasterTemp and\n    Sta-Rite Max-E-Therm heaters.\n\u003c\/p\u003e\n\n\u003cp\u003e\n    \u003cstrong\u003eKit Information:\u003c\/strong\u003e\n    Pentair identifies this assembly as a replacement\n    blower kit. The Max-E-Therm parts documentation\n    specifies a single-voltage blower adapter.\n    Confirm any additional hardware or gasket requirements\n    against the current manufacturer's kit contents.\n\u003c\/p\u003e\n\n\u003cp\u003e\n    \u003cstrong\u003eNot Included:\u003c\/strong\u003e\n    Complete heater, gas control valve,\n    burner assembly, control board,\n    and other separately listed heater components.\n\u003c\/p\u003e\n\n\u003cp\u003e\n    \u003cstrong\u003eCompatibility:\u003c\/strong\u003e\n    Designed for specified 400,000 BTU natural gas\n    Pentair MasterTemp and Sta-Rite Max-E-Therm heaters.\n    Not intended as a direct replacement for propane\n    heater blower assemblies.\n\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":52408018272572,"sku":"77707-0253","price":624.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/3280\/9276\/files\/pentair-air-blower-kit-for-mastertemp-400-77707-0253-heater-parts-6688802.png?v=1793226433","url":"https:\/\/aquapoolsupply.com\/products\/pentair-air-blower-kit-for-mastertemp-400-77707-0253","provider":"Aqua Pool Supply","version":"1.0","type":"link"}