{"product_id":"icp-40va-transformer-for-wjh330000ktp0a2-208-230-to-24v-ships-today","title":"ICP 40VA Transformer for WJH330000KTP0A2 – 208\/230 to 24V | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis is a genuine OEM 40VA control transformer (Part #1173691) for the ICP\/Tempstar\/Heil WJH330000KTP0A2 heat pump. The transformer steps the 208\/230V line voltage down to the 24V used by the thermostat, control board, contactor coil, and reversing-valve coil. Without correct 24V output, the entire low-voltage control circuit goes dead — the system won't respond to thermostat calls and the contactor and reversing valve cannot energize. This combination listing covers the related 24V control components for the WJH330000KTP0A2, including the reversing-valve coil and barrier hardware.\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\u003ePrimary Part Number\u003c\/td\u003e\n\u003ctd\u003e1173691 (TRANS 208\/230 to 24V 40VA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eStep-Down Control 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\u003eRating\u003c\/td\u003e\n\u003ctd\u003e40 VA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Voltage\u003c\/td\u003e\n\u003ctd\u003e208\/230V\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\u003eRelated Parts\u003c\/td\u003e\n\u003ctd\u003e1176032 Barrier 24V, 1172619 Reversing Valve Coil 24V, 1173708 Reversing Valve w\/ Coil 24V\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\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eFactory-correct 40VA control transformer for the ICP\/Tempstar\/Heil WJH330000KTP0A2, and a direct replacement across ICP-family heat pumps and condensers using a 208\/230V-to-24V 40VA transformer. Confirm your primary\/secondary voltages and VA rating before installing.\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.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e – Remove the unit's electrical access panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e – Photograph the primary and secondary wiring before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e – Disconnect the line-voltage primary leads and the 24V secondary leads, then unbolt the old transformer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e – Mount the new transformer, wire the 208\/230V primary and 24V secondary to the matching terminals per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e – Restore power and verify 24V output at the secondary and proper control response on a thermostat call.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNo 24V control power — thermostat and system are unresponsive.\u003c\/li\u003e\n\u003cli\u003eContactor or reversing valve coil won't energize.\u003c\/li\u003e\n\u003cli\u003eBurnt smell, scorched windings, or visible overheating on the transformer.\u003c\/li\u003e\n\u003cli\u003eBlown low-voltage fuse that recurs after replacement.\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":"Direct Replacement","offer_id":63021552992627,"sku":"1176032-GEN","price":29.0,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63047958593907,"sku":"1176032","price":37.7,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-control-1176032_4b9f3820-25cf-422f-a02d-dcd1888d4725.jpg?v=1782882974","url":"https:\/\/nationalhvacparts.com\/products\/icp-40va-transformer-for-wjh330000ktp0a2-208-230-to-24v-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}