{"product_id":"icp-fan-coil-control-board-for-wahm302a1-oem-replacement-ships-today","title":"ICP Fan Coil Control Board for WAHM302A1 — OEM Replacement | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis OEM fan coil control board (part number 1172975) is the main low-voltage control module for your ICP WAHM302A1 air handler. The board interprets thermostat calls, sequences the ECM blower, manages electric heat staging, and routes 24V power throughout the unit. When a control board fails the symptoms are often intermittent and confusing — the blower may not start, auxiliary heat may not engage, the system may short-cycle, or it may stop responding to the thermostat entirely. Burnt relays, scorched traces, blown onboard fuses, or heat damage around the terminals are clear indicators the board has failed and needs replacement.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpec\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e1172975\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eFan Coil Control Board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eICP (Tempstar \/ Heil)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eBlower \/ Heat Staging \/ 24V Control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eIndoor Air Handler \/ Fan Coil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eOEM Direct Replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eDirect OEM replacement for the ICP WAHM302A1 air handler. As ICP manufactures the Tempstar, Heil, Comfortmaker, and Arcoaire brands, this fan coil control board also services comparable WAHM-series fan coils built on the same control platform. Confirm part number 1172975 and connector layout against your existing board before installing.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety First\u003c\/strong\u003e — Disconnect power at the breaker and verify zero voltage with a multimeter before touching the board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the air handler control-compartment service panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph every harness, thermostat wire, and plug connected to the board before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug all connectors and thermostat leads, then unscrew or unclip the board from its standoffs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new board on the standoffs and reconnect each harness and thermostat wire exactly per your photos.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and verify the blower, heat staging, and thermostat response all operate normally.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBlower or electric heat will not energize on a thermostat call.\u003c\/li\u003e\n\u003cli\u003eSystem short-cycles or ignores the thermostat intermittently.\u003c\/li\u003e\n\u003cli\u003eVisible burnt relays, scorched traces, or a blown onboard fuse.\u003c\/li\u003e\n\u003cli\u003eNo 24V output to the blower or heat circuits despite good incoming control power.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\u003e\n\u003cp\u003eShips same day on orders placed before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.\u003c\/p\u003e","brand":"ICP","offers":[{"title":"OEM","offer_id":63021619478899,"sku":"1172975","price":214.5,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047520715123,"sku":"1172975-GEN","price":165.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-furnace-1172975_e436d443-3e17-4e29-a7f6-2ca68396e878.jpg?v=1782887920","url":"https:\/\/nationalhvacparts.com\/products\/icp-fan-coil-control-board-for-wahm302a1-oem-replacement-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}