{"product_id":"icp-control-board-for-rhs150s0aa0aaaa-defrost-control-board-kit-ships-today","title":"ICP Control Board for RHS150S0AA0AAAA — Defrost\/Control Board Kit | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis OEM control board kit (PN 1183618) is the electronic brain of the ICP \/ Tempstar \/ Heil RHS150S0AA0AAAA heat pump. It manages defrost timing and termination, compressor and reversing-valve sequencing, fan operation, and low-voltage safety logic. The kit ships with the mounting hardware and connectors needed for a clean swap. When a control board fails, symptoms range from a heat pump stuck in defrost (or never defrosting and icing over), to no compressor operation, to erratic reversing-valve switching between heating and cooling. Power surges, moisture intrusion, and aging capacitors on the board are the usual culprits. Replacing the board with the correct OEM kit restores proper sequencing and protects the compressor.\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\u003ePart Type\u003c\/td\u003e\n\u003ctd\u003eControl \/ Defrost Board Kit\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\u003e24 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncludes\u003c\/td\u003e\n\u003ctd\u003eBoard, mounting hardware, connectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eOEM Replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eDesigned for the ICP RHS150S0AA0AAAA heat pump and shared-platform RHS150-series units under the Tempstar, Heil, and Comfortmaker brands. Match the board part number to your unit 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 and verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the control-panel service cover.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph every connector and wire position before unplugging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug each harness, release the board standoffs, and lift out the old board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new board and reconnect each harness exactly per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and verify heating, cooling, and a defrost cycle operate correctly.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHeat pump stuck in defrost or never defrosting (outdoor coil ices over)\u003c\/li\u003e\n\u003cli\u003eCompressor or fan won't run on a valid call\u003c\/li\u003e\n\u003cli\u003eErratic switching between heating and cooling\u003c\/li\u003e\n\u003cli\u003eNo response from the board with 24V present and thermostat calling\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":63021866975603,"sku":"1183618","price":240.5,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047464747379,"sku":"1183618-GEN","price":185.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-furnace-1183618_ecaa4990-cc9c-40b1-a23f-e1d4904b8e3f.jpg?v=1782885395","url":"https:\/\/nationalhvacparts.com\/products\/icp-control-board-for-rhs150s0aa0aaaa-defrost-control-board-kit-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}