{"product_id":"icp-40va-transformer-for-wpg4484115rkb1-208-230-to-24v-ships-today-1","title":"ICP 40VA Transformer for WPG4484115RKB1 – 208\/230 to 24V | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis OEM control transformer (part number 1173691, with barrier 1178431) steps line voltage down to the 24V control power that runs the thermostat, relays, and safety circuits on your ICP WPG4484115RKB1 system. Rated at 40VA with a 208\/230V primary and 24V secondary, it is the heart of the low-voltage control system. When a transformer fails — often from a shorted thermostat wire or a stuck contactor coil — the entire control circuit goes dead. Common symptoms include a blank thermostat, no response on a call for heating or cooling, or a transformer that has overheated and burned out.\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\u003ePart Numbers\u003c\/td\u003e\n\u003ctd\u003e1173691, 1178431 (barrier)\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\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\u003eRating\u003c\/td\u003e\n\u003ctd\u003e40 VA\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 \/ Tempstar \/ Heil WPG4484115RKB1 unit. Used across ICP-family package units and air handlers requiring a 40VA, 208\/230-to-24V control transformer.\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 control panel cover to reach the transformer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e – Photograph the primary and secondary wire connections before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e – Disconnect the primary and secondary leads and unbolt the old transformer from its mount.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e – Mount the new transformer, reconnect the correct primary voltage taps and the 24V secondary per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e – Restore power and confirm 24V at the secondary and normal thermostat operation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBlank or unresponsive thermostat\u003c\/li\u003e\n\u003cli\u003eNo 24V control power at the board\u003c\/li\u003e\n\u003cli\u003eSystem dead on both heating and cooling calls\u003c\/li\u003e\n\u003cli\u003eTransformer is burnt, swollen, or smells scorched\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":63027207602547,"sku":"1178431-GEN","price":29.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63047964623219,"sku":"1178431","price":38.94,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-control-1178431_5ed88f83-7a7d-45f4-923a-2ea69baeecd6.jpg?v=1782883416","url":"https:\/\/nationalhvacparts.com\/products\/icp-40va-transformer-for-wpg4484115rkb1-208-230-to-24v-ships-today-1","provider":"National HVAC Parts","version":"1.0","type":"link"}