{"product_id":"icp-transformer-for-wpg3364090rkc1-40va-208-230v-to-24v-ships-today-1","title":"ICP Transformer for WPG3364090RKC1 — 40VA 208\/230V to 24V | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis OEM control transformer converts incoming 208\/230V line voltage to the 24V control voltage used by the thermostat, contactor, relays, and ignition controls on your ICP Tempstar\/Heil WPG3364090RKC1 system. Rated at 40VA, it supplies the current needed to drive the entire low-voltage control circuit. The kit includes the 24V barrier (OEM 1178431) and the 208\/230V-to-24V 40VA transformer (OEM 1173691). A failed transformer typically leaves the control circuit completely dead — no thermostat response, no contactor pull-in, and no call for heat or cool. Watch for a buzzing or overheated transformer, a repeatedly blown low-voltage fuse, or zero volts on the 24V secondary.\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\u003e1178431 (Barrier 24V), 1173691 (Transformer)\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\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\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eDirectly fits the ICP Tempstar\/Heil WPG3364090RKC1 packaged unit and other ICP-family models that use a 40VA 208\/230V-to-24V control transformer. Always confirm the VA rating and primary\/secondary voltage against the part you are replacing.\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 before touching any wiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the control\/service panel to expose the transformer.\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 primary (line) and secondary (24V) leads, then unbolt the old transformer and barrier from the panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new transformer and 24V barrier, then reconnect the primary and secondary leads exactly per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and verify 24V across the secondary terminals and proper control operation.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eNo 24V at the thermostat or control board\u003c\/li\u003e\n\u003cli\u003eRepeatedly blown low-voltage fuses\u003c\/li\u003e\n\u003cli\u003eBuzzing, humming, or hot-to-touch transformer\u003c\/li\u003e\n\u003cli\u003eSystem fully dead with line voltage present\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":63027221102963,"sku":"1178431","price":31.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047750549875,"sku":"1178431-GEN","price":24.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-control-1178431_9bd9974f-7021-4d04-a76f-cfc1f6d7490e.jpg?v=1782896753","url":"https:\/\/nationalhvacparts.com\/products\/icp-transformer-for-wpg3364090rkc1-40va-208-230v-to-24v-ships-today-1","provider":"National HVAC Parts","version":"1.0","type":"link"}