{"product_id":"icp-fan-coil-control-board-for-wahm602a1-oem-air-handler-board-ships-today","title":"ICP Fan Coil Control Board for WAHM602A1 — OEM Air Handler Board | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis OEM fan coil control board (part number 1172975) is the electronic brain of the ICP WAHM602A1 air handler. It receives the thermostat's low-voltage calls and sequences the blower motor, manages the 24V control circuit, and coordinates auxiliary\/electric heat staging where equipped. When a control board fails, symptoms range from a blower that won't run (or runs constantly) to no response from the thermostat, intermittent operation, or visible scorching and failed relays on the board. Boards typically fail from power surges, lightning, overheated relay contacts, or corrosion in humid air handler closets.\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 \/ 24V control management\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eAir Handler \/ Fan Coil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eDesigned as the factory replacement control board for the ICP WAHM602A1 fan coil air handler. The 1172975 board is also used across related Tempstar, Heil, and Comfortmaker fan coil units in the same family. Match your board's part number and connector layout 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 servicing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the air handler service panel to expose the control board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph every wire harness, plug, and terminal location before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug each connector, release the board standoffs\/screws, and lift out the failed board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new 1172975 board and reconnect every harness exactly as photographed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and run a heat and cool call to confirm the blower energizes and staging operates correctly.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBlower won't start, or runs continuously regardless of thermostat setting.\u003c\/li\u003e\n\u003cli\u003eNo response to thermostat calls even with good 24V power present.\u003c\/li\u003e\n\u003cli\u003eVisible burnt traces, scorched relays, or a burning smell from the board.\u003c\/li\u003e\n\u003cli\u003eIntermittent or erratic blower and heat operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\u003e\n\u003cp\u003eShips same day 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":63021617578355,"sku":"1172975","price":207.94,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047520977267,"sku":"1172975-GEN","price":159.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-furnace-1172975_5c99fcd9-a5dd-4041-bef3-e9c0fd8758b0.jpg?v=1782887936","url":"https:\/\/nationalhvacparts.com\/products\/icp-fan-coil-control-board-for-wahm602a1-oem-air-handler-board-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}