{"product_id":"icp-fan-coil-control-board-for-waht304a1-oem-air-handler-board-ships-today","title":"ICP Fan Coil Control Board for WAHT304A1 — OEM Air Handler Board | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis is a genuine OEM fan coil control board (part #1172975) for the ICP WAHT304A1 air handler. The board is the brain of the air handler: it receives the 24V thermostat signals, energizes the blower motor and electric heat relays, manages blower speed and timing, and protects the system through its onboard fusing and sequencing logic. A failed control board commonly causes no blower operation, the blower running constantly or at the wrong speed, intermittent dropouts, or no response at all to a thermostat call. Visual signs include scorched or swollen components, a blown onboard fuse, or relays that chatter instead of pulling in cleanly.\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 \/ Blower Control Board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eICP (Tempstar \/ Heil \/ Comfortmaker)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl Voltage\u003c\/td\u003e\n\u003ctd\u003e24V low-voltage input\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\u003ctr\u003e\n\u003ctd\u003eFit\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\u003eBuilt as a direct-fit replacement for the ICP WAHT304A1 air handler and shared across ICP-family fan coil units (Tempstar, Heil, Comfortmaker, Arcoaire) that use the 1172975 board. Match the part number 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 at the unit with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the air handler control compartment access panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph every wire harness and terminal connection on the board before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug all connectors, remove the mounting screws or standoffs, and lift out the failed board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new board on the same standoffs and reconnect each harness to its matching terminal exactly per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and confirm correct blower operation and proper response to heat and cool calls.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBlower does not run on any thermostat call\u003c\/li\u003e\n\u003cli\u003eBlower runs continuously or at the wrong speed\u003c\/li\u003e\n\u003cli\u003eIntermittent operation or random shutdowns\u003c\/li\u003e\n\u003cli\u003eBlown onboard fuse, scorched traces, or chattering relays\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":63021616824691,"sku":"1172975","price":214.5,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047521042803,"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_1f20610c-1fe3-450f-870b-9add386d32b2.jpg?v=1782887941","url":"https:\/\/nationalhvacparts.com\/products\/icp-fan-coil-control-board-for-waht304a1-oem-air-handler-board-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}