{"product_id":"icp-furnace-control-board-kit-for-rhs243s0ba0aaaa-oem-1183618-ships-today","title":"ICP Furnace Control Board Kit for RHS243S0BA0AAAA — OEM 1183618 | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis OEM control board kit (part number 1183618) is the brain of your ICP \/ Tempstar \/ Heil RHS243S0BA0AAAA heat pump system. The board manages call-for-cool and call-for-heat sequencing, defrost timing, fan staging, and safety lockouts. When a control board fails you will typically see a unit that won't start, intermittent operation, blower that runs constantly, no defrost in heat-pump mode, or fault\/error LED codes flashing on the board itself. This is a complete kit replacement — supplied with the correct board for this model so you avoid the guesswork of cross-referencing legacy revisions.\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\u003e1183618\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eControl Board Kit (OEM)\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\u003eRHS243S0BA0AAAA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eHeat Pump Control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eDirect OEM Replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eEngineered as a direct-fit replacement for the ICP \/ Tempstar \/ Heil RHS243S0BA0AAAA heat pump. Verify your existing board's part number against 1183618 before ordering. Backed by the National HVAC Parts fitment guarantee.\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 disconnect and breaker, then verify zero voltage with a multimeter before touching any wiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the control\/access panel to expose the 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 each harness, release the board standoffs\/screws, and lift out the failed board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new 1183618 board on the standoffs and reconnect every harness exactly per your photos.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and verify a normal cool, heat, and defrost cycle with no fault codes.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUnit will not start on a valid call for heat or cool\u003c\/li\u003e\n\u003cli\u003eBlower runs continuously or fails to energize\u003c\/li\u003e\n\u003cli\u003eNo defrost cycle in heat-pump mode (icing on the outdoor coil)\u003c\/li\u003e\n\u003cli\u003eFault\/error LED codes or visible burn marks\/relays 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":63021836206451,"sku":"1183618","price":206.7,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047570719091,"sku":"1183618-GEN","price":159.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-furnace-1183618_8068cdab-1e54-4927-ba6b-adf6bfa3990e.jpg?v=1782889761","url":"https:\/\/nationalhvacparts.com\/products\/icp-furnace-control-board-kit-for-rhs243s0ba0aaaa-oem-1183618-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}