{"product_id":"icp-transformer-for-rhs048l0bb0aaaa-24v-40va-control-ships-today","title":"ICP Transformer for RHS048L0BB0AAAA — 24V 40VA Control | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis OEM 24V control transformer\/coil component covers the low-voltage control supply for the ICP\/Tempstar\/Heil RHS048L0BB0AAAA heat pump and includes the matching 24V coils (parts 1172619 and 1175367). It delivers the 24V power that energizes the contactor coil, reversing-valve solenoid, and thermostat circuit. When this component fails, the low-voltage side goes dead — a blank thermostat, an unresponsive contactor, and a heat pump that ignores the call for heating or cooling. Typical failures include an open winding, an internal short from overload, or damage caused by a shorted control wire. Installing the correct 24V \/ 40VA OEM replacement restores reliable control power and proper reversing-valve switching.\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 Numbers\u003c\/td\u003e\n\u003ctd\u003e1172619, 1175367\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003e24V Control Transformer \/ Coil\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\u003eOutput Voltage\u003c\/td\u003e\n\u003ctd\u003e24V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRating\u003c\/td\u003e\n\u003ctd\u003e40VA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eOEM\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\/Tempstar\/Heil RHS048L0BB0AAAA heat pump and used across comparable ICP-family heat pumps sharing the same 24V control circuit and reversing-valve coil. Confirm primary voltage and secondary VA rating against the existing part 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\/service panel to reach the low-voltage section.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph all primary and secondary wiring before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Label leads, disconnect them, and unfasten the old component.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new unit and reconnect each lead to the matching terminal per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, confirm 24V on the secondary, and verify normal heat\/cool switching.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBlank thermostat or dead low-voltage circuit\u003c\/li\u003e\n\u003cli\u003eReversing valve won't shift between heat and cool\u003c\/li\u003e\n\u003cli\u003eNo measurable 24V on the secondary\u003c\/li\u003e\n\u003cli\u003eRepeated control-circuit failures or burnt smell\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. National HVAC Parts fitment guarantee.\u003c\/p\u003e","brand":"ICP","offers":[{"title":"OEM","offer_id":63021920977267,"sku":"1172619","price":38.94,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047727219059,"sku":"1172619-GEN","price":29.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-control-1172619_e9c2449f-bd11-4b40-ba99-bc1f55ae0993.jpg?v=1782896124","url":"https:\/\/nationalhvacparts.com\/products\/icp-transformer-for-rhs048l0bb0aaaa-24v-40va-control-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}