{"product_id":"icp-40va-transformer-for-wjh336000ktp0a2-208-230v-to-24v-ships-today-1","title":"ICP 40VA Transformer for WJH336000KTP0A2 — 208\/230V to 24V | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis is a genuine OEM 40VA control transformer for the ICP\/Heil\/Tempstar WJH336000KTP0A2. It steps 208\/230V line voltage down to the 24V control circuit that powers the thermostat, contactor coil, reversing valve coil, and safety controls. Rated at 40VA, it supplies enough current to energize the reversing-valve solenoid and contactor simultaneously without sagging. When the transformer fails — open primary, shorted winding, or a popped internal fuse — the entire low-voltage system goes dead: no thermostat display, no contactor pull-in, and no heat-pump operation. This combo listing also covers the related 24V reversing-valve coil and barrier hardware (OEM 1176032, 1172619, 1173708) used on the same control assembly.\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 OEM Part Number\u003c\/td\u003e\n\u003ctd\u003e1173691 (TRANS 208\/230\u0026gt;24 40VA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelated OEM Parts\u003c\/td\u003e\n\u003ctd\u003e1176032 Barrier 24V, 1172619 Coil Rev Vlv 24V, 1173708 Valve Rev w\/Coil 24V\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\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\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eICP \/ Heil \/ Tempstar \/ Comfortmaker\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eDirect OEM fit for the ICP\/Heil\/Tempstar WJH336000KTP0A2 heat-pump platform and related units using the 40VA 208\/230-to-24V control transformer. Verify the part number and VA rating on your existing transformer before ordering.\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 and verify zero voltage with a multimeter on both line and control terminals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the control-box service panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph the primary (line) and secondary (24V) leads before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unscrew the transformer mounting bracket and disconnect the primary and secondary wiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new transformer, land the 208\/230V primary and 24V secondary leads exactly per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, confirm 24V at the secondary, and verify the thermostat, contactor, and reversing valve energize.\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 — blank thermostat, system dead\u003c\/li\u003e\n\u003cli\u003eContactor or reversing valve will not energize\u003c\/li\u003e\n\u003cli\u003eTransformer hums loudly, overheats, or smells burnt\u003c\/li\u003e\n\u003cli\u003eRepeated blown low-voltage fuses tied to a shorted winding\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":63027230703987,"sku":"1176032","price":32.44,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047382106483,"sku":"1176032-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-1176032_a289fdd6-a418-4c3f-ae64-f1ad9a6c6a47.jpg?v=1782882996","url":"https:\/\/nationalhvacparts.com\/products\/icp-40va-transformer-for-wjh336000ktp0a2-208-230v-to-24v-ships-today-1","provider":"National HVAC Parts","version":"1.0","type":"link"}