{"product_id":"icp-fan-coil-control-board-for-wahm484a1-oem-1172975-ships-today","title":"ICP Fan Coil Control Board for WAHM484A1 — OEM 1172975 | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThe ICP OEM Fan Coil Control Board (part number 1172975) is the central logic module for the WAHM484A1 air handler. It manages blower operation, interprets thermostat demand, sequences the indoor fan with heating and cooling calls, and protects the system through onboard relays and diagnostics. When this board fails you may see a completely dead air handler, a blower that never starts or never stops, intermittent operation, or no response to the thermostat. Because the board coordinates every electrical function of the fan coil, a faulty board often mimics other failures — replacing it with the correct factory part restores reliable, code-compliant operation.\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\u003eFit\u003c\/td\u003e\n\u003ctd\u003eOEM\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\u003eDesigned For\u003c\/td\u003e\n\u003ctd\u003eWAHM484A1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eThis control board is the factory replacement for the ICP\/Tempstar\/Heil WAHM484A1 fan coil air handler and related WAHM-series units that originally shipped with board 1172975. Always confirm the printed part number on 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 opening the unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the air handler service\/blower panel to expose the control box.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph every wire and connector position on the existing board before disconnecting anything.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug the harness connectors, release the board mounting standoffs or screws, and lift out the old board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Seat the new 1172975 board on the standoffs and reconnect each harness exactly as photographed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, run a heat and cool call, and confirm proper blower sequencing and diagnostics.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAir handler is completely unresponsive to the thermostat.\u003c\/li\u003e\n\u003cli\u003eBlower will not start, or runs continuously and won't shut off.\u003c\/li\u003e\n\u003cli\u003eIntermittent operation, random resets, or error codes on the board LED.\u003c\/li\u003e\n\u003cli\u003eVisible scorching, burnt relays, or corrosion on the board.\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":63021617709427,"sku":"1172975","price":245.7,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047520944499,"sku":"1172975-GEN","price":189.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-furnace-1172975_702bc0ec-2bcd-4eb0-a772-1a9710b7a2f2.jpg?v=1782887934","url":"https:\/\/nationalhvacparts.com\/products\/icp-fan-coil-control-board-for-wahm484a1-oem-1172975-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}