{"product_id":"icp-control-board-kit-for-rhs243h0fa0aaaa-oem-1183618-ships-today","title":"ICP Control Board Kit for RHS243H0FA0AAAA — OEM 1183618 | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis is the genuine OEM control board kit (Part Number 1183618) for the ICP \/ Tempstar \/ Heil RHS243H0FA0AAAA heat pump. The control board is the brain of the outdoor unit — it interprets thermostat calls, sequences the compressor and condenser fan, manages the reversing valve for heat\/cool changeover, and runs the timed and demand defrost cycle in heat-pump mode. When the board fails, the unit may not respond to a thermostat call, get stuck in defrost or never defrost, fail to switch between heating and cooling, or show no output to the contactor and fan at all. Because it ships as a complete kit, this part includes the board and the mounting hardware needed for a clean factory-spec replacement, restoring correct sequencing and full defrost protection.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\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\u003e1183618\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription\u003c\/td\u003e\n\u003ctd\u003eKit, Control Board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eHeat Pump Defrost \/ Sequencing 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\u003eFits Model\u003c\/td\u003e\n\u003ctd\u003eRHS243H0FA0AAAA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eOEM Direct Replacement Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eEngineered as a direct-fit replacement for the ICP RHS243H0FA0AAAA heat pump and the RHS243 family sold under the ICP, Tempstar, Heil, and Comfortmaker labels. Verify the printed board number against your original before installing.\u003c\/p\u003e\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety First\u003c\/strong\u003e — Disconnect the breaker and outdoor disconnect. Verify zero voltage with a multimeter before touching the board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the control\/service panel to expose the board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph every harness plug, sensor lead, and terminal position before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug each connector, release the board standoffs or mounting screws, and lift the old board out.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new board with the included hardware and reconnect every plug per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, call for heating and cooling, and confirm correct sequencing, changeover, and a normal defrost cycle.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUnit does not respond to any thermostat call\u003c\/li\u003e\n\u003cli\u003eHeat pump stuck in or never entering defrost\u003c\/li\u003e\n\u003cli\u003eNo output to the contactor, fan, or reversing valve\u003c\/li\u003e\n\u003cli\u003eVisible burn marks, corrosion, or scorched traces on the board\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\u003e\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":63021836763507,"sku":"1183618","price":246.94,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047486341491,"sku":"1183618-GEN","price":189.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-furnace-1183618_ee0cd881-ee23-4722-b225-cb4ca6d7c446.jpg?v=1782886186","url":"https:\/\/nationalhvacparts.com\/products\/icp-control-board-kit-for-rhs243h0fa0aaaa-oem-1183618-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}