{"product_id":"icp-control-board-kit-for-rhs150l0cb0aaaa-24v-integrated-defrost-board-ships-today","title":"ICP Control Board Kit for RHS150L0CB0AAAA — 24V Integrated Defrost Board | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis OEM control board kit (part 1183618) is the central logic board for the ICP \/ Heil \/ Tempstar RHS150L0CB0AAAA heat pump. It manages the 24V control circuit, sequences the compressor and condenser fan, and governs defrost timing for reliable heat-pump operation in both heating and cooling modes. When this board fails the unit may stop responding to thermostat calls, run continuously, fail to enter or exit defrost, or trip on safety lockouts. A faulty board often shows scorched relay contacts, blown traces, or a board that no longer powers up. Replacing it with the genuine OEM kit restores correct timing and protection rather than masking a symptom.\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 (KIT CONTROL BOARD)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eIntegrated heat-pump \/ defrost control board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eICP (Heil \/ Tempstar)\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\u003eFits Model\u003c\/td\u003e\n\u003ctd\u003eRHS150L0CB0AAAA\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 \/ Heil \/ Tempstar RHS150L0CB0AAAA heat pump and closely related RHS150-series units that originally shipped with the 1183618 board kit. Always confirm your existing board's part number before ordering.\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 disconnect and breaker, then verify zero voltage with a multimeter at the board's line terminals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the unit's control\/service panel to expose the existing board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph every wire and connector position before disconnecting anything.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Label and unplug the low-voltage harness, sensor leads, and high-voltage terminals, then unsnap or unscrew the old board from its standoffs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new 1183618 board on the standoffs and reconnect each wire exactly as photographed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, call for heat and cool, and confirm correct staging, fan operation, and a clean 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 thermostat calls or runs continuously.\u003c\/li\u003e\n\u003cli\u003eHeat pump fails to enter or exit defrost properly.\u003c\/li\u003e\n\u003cli\u003eVisible burnt relays, scorched traces, or a dead board with no LED.\u003c\/li\u003e\n\u003cli\u003eIntermittent lockouts or erratic compressor\/fan cycling.\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":63021875888499,"sku":"1183618","price":218.4,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047483261299,"sku":"1183618-GEN","price":168.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-defrost-1183618_b5a39203-4d07-4319-84d0-03e68e0e837e.jpg?v=1782886095","url":"https:\/\/nationalhvacparts.com\/products\/icp-control-board-kit-for-rhs150l0cb0aaaa-24v-integrated-defrost-board-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}