{"product_id":"icp-40va-transformer-for-wph3364000rkc1-24v-control-circuit-ships-today-1","title":"ICP 40VA Transformer for WPH3364000RKC1 — 24V Control Circuit | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis OEM transformer delivers the 24-volt control power that operates the contactor coil, reversing-valve solenoid, and low-voltage relays on your ICP\/Tempstar\/Heil WPH3364000RKC1 heat pump. It steps line voltage down to a stable 24V, 40VA secondary output that feeds the entire control circuit. A failed transformer leaves the system completely dead at the thermostat — no cooling, no heating, and no contactor engagement — even though high-voltage power remains present. Buzzing, a burnt smell, or an open secondary winding are classic, low-cost transformer failures that can masquerade as much larger problems.\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\u003eOEM Part Numbers\u003c\/td\u003e\n\u003ctd\u003e1176144, 1172619, 1173708\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eControl Transformer\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\u003eSecondary 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 Replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eEngineered for the ICP WPH3364000RKC1 heat pump and shared across many Tempstar, Heil, and Comfortmaker units on the same low-voltage control platform. Confirm secondary VA and voltage match 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 breaker 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 all primary and secondary wire connections before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Disconnect the line-voltage primary leads and 24V secondary leads, then unbolt the failed transformer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new transformer and reconnect primary and secondary wiring per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and confirm a steady 24V reading at the secondary terminals.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSystem is completely unresponsive at the thermostat\u003c\/li\u003e\n\u003cli\u003eContactor will not energize on a cooling or heating call\u003c\/li\u003e\n\u003cli\u003eAudible buzzing from the control transformer\u003c\/li\u003e\n\u003cli\u003eNo 24V output measured across the secondary terminals\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":63027205046643,"sku":"1176144","price":32.44,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047395017075,"sku":"1176144-GEN","price":24.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-control-1176144_a0afc80d-6d93-4d9b-987b-769279e8e2ca.jpg?v=1782883464","url":"https:\/\/nationalhvacparts.com\/products\/icp-40va-transformer-for-wph3364000rkc1-24v-control-circuit-ships-today-1","provider":"National HVAC Parts","version":"1.0","type":"link"}