{"product_id":"icp-control-board-kit-for-rhh120s0aa0aaaa-oem-1183618-heat-pump-board-ships-today","title":"ICP Control Board Kit for RHH120S0AA0AAAA — OEM 1183618 Heat Pump Board | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThe ICP OEM Control Board Kit (part number 1183618) is the factory-engineered control module for the ICP \/ Tempstar \/ Heil RHH120S0AA0AAAA heat pump. The control board is the brain of the system — it manages the defrost cycle, sequences the compressor and reversing valve, monitors safety inputs, and coordinates communication between the thermostat and outdoor unit. A failed board is one of the most common causes of a heat pump that won't run, won't defrost, or short-cycles. Replacing it with the exact OEM kit restores reliable operation without the guesswork of universal aftermarket boards. Typical failure symptoms include a completely dead outdoor unit, ice buildup from missed defrost cycles, intermittent operation, error codes at the thermostat, and burnt or scorched traces on the old board.\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\u003eType\u003c\/td\u003e\n\u003ctd\u003eControl Board Kit\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\u003eControl Voltage\u003c\/td\u003e\n\u003ctd\u003e24V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eHeat Pump Outdoor Unit\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\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eEngineered as a direct-fit replacement for the ICP RHH120S0AA0AAAA heat pump and shared chassis units sold under the Tempstar, Heil, and Comfortmaker labels. Always verify the part number printed on your existing board matches 1183618 before installing.\u003c\/p\u003e\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety First\u003c\/strong\u003e — Disconnect power at the outdoor disconnect and breaker, then verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the outdoor unit's control\/service panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph every wire and connector position before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug all harness connectors and remove the mounting screws\/standoffs holding the old board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new board on the standoffs and reconnect each harness exactly per your photos.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and verify the unit runs in both heating and cooling, including a defrost cycle.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOutdoor unit is completely unresponsive\u003c\/li\u003e\n\u003cli\u003eHeat pump ices over from skipped defrost cycles\u003c\/li\u003e\n\u003cli\u003eIntermittent or short-cycling operation\u003c\/li\u003e\n\u003cli\u003eVisible burn marks, swollen capacitors, or cracked traces on the board\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\u003e\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":63021928874355,"sku":"1183618","price":219.7,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047482835315,"sku":"1183618-GEN","price":169.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-furnace-1183618_27249b5c-9e4c-4d2f-96b2-f3055f5128b5.jpg?v=1782886078","url":"https:\/\/nationalhvacparts.com\/products\/icp-control-board-kit-for-rhh120s0aa0aaaa-oem-1183618-heat-pump-board-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}