{"product_id":"icp-40va-transformer-208-230v-to-24v-for-wjh324000ktp0a1-ships-today-1","title":"ICP 40VA Transformer 208\/230V to 24V for WJH324000KTP0A1 | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis OEM control transformer (part #1173691) supplies the 24-volt control power for your ICP\/Heil\/Tempstar WJH324000KTP0A1 heat pump. It steps the 208\/230V line-voltage primary down to a 24V secondary at 40VA, powering the thermostat, control board, contactor coil, and reversing-valve coil. When the transformer fails — open winding, shorted secondary, or a popped internal fuse link — the entire low-voltage control circuit goes dead: no thermostat display, no contactor pull-in, and a system that won't respond to any call. This listing covers the transformer for the WJH324000KTP0A1; related 24V components for this model include the reversing valve coil (#1172619), reversing valve with coil (#1173715), and 24V barrier (#1176032).\u003c\/p\u003e\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\u003e1173691\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 \/ Heil \/ Tempstar\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\/230 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSecondary Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelated Parts\u003c\/td\u003e\n\u003ctd\u003e1176032 barrier, 1172619 rev-valve coil, 1173715 rev-valve w\/coil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eEngineered for the ICP\/Heil\/Tempstar\/Comfortmaker WJH324000KTP0A1 heat pump and other Carrier-family units using a 40VA, 208\/230-to-24V control transformer. Confirm the primary tap voltage and VA rating match your existing transformer before installing.\u003c\/p\u003e\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; verify zero voltage at the transformer primary 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 (line) and secondary (24V) wiring and the chosen voltage tap before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Label and disconnect all leads, then unbolt the old transformer from the panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new transformer, wire the correct 208 or 230V primary tap, and reconnect the 24V secondary per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and confirm 24VAC at the secondary and normal control operation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNo 24V control power — dead thermostat and unresponsive system\u003c\/li\u003e\n\u003cli\u003eMeasured 0V at the transformer secondary with line voltage present\u003c\/li\u003e\n\u003cli\u003eBurnt smell, discolored case, or visibly overheated windings\u003c\/li\u003e\n\u003cli\u003eRepeated control-fuse blowing traced to a shorted transformer\u003c\/li\u003e\n\u003c\/ul\u003e\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":63027231555955,"sku":"1176032","price":37.64,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047372276083,"sku":"1176032-GEN","price":28.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-control-1176032_19701af5-316b-4532-a1b2-6e26e6868867.jpg?v=1782882386","url":"https:\/\/nationalhvacparts.com\/products\/icp-40va-transformer-208-230v-to-24v-for-wjh324000ktp0a1-ships-today-1","provider":"National HVAC Parts","version":"1.0","type":"link"}