{"product_id":"icp-40va-transformer-for-wugf080af01-120v-to-24v-ships-today","title":"ICP 40VA Transformer for WUGF080AF01 — 120V to 24V | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis is a genuine OEM 40VA control transformer assembly (part number 97298, \"TRANS RELAY RECEP 120\u0026gt;24 40VA,\" supplied with the matching 92840 24V SPDT relay) for the ICP \/ Tempstar \/ Heil WUGF080AF01 gas furnace. The transformer steps the 120V line voltage down to the 24V low-voltage control power that runs the thermostat, gas valve, igniter circuit, and relays. Without a working transformer the entire low-voltage control side of the furnace is dead — the thermostat will not call, the gas valve will not open, and the system will not run. Typical failure symptoms are a completely unresponsive thermostat, no 24V at the control board, a blown low-voltage fuse, or a transformer that buzzes, overheats, or shows scorching. Transformers commonly fail from a shorted thermostat wire, a shorted gas valve, or simple age-related winding breakdown.\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\u003e97298 (transformer\/receptacle), 92840 (24V SPDT relay)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eControl Transformer, 120\/24V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eICP \/ Tempstar \/ Heil \/ Comfortmaker\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\u003e120V\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\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eOEM Direct 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\u003eDirectly fits the ICP \/ Tempstar \/ Heil WUGF080AF01 upflow gas furnace and related ICP-family furnaces using the 97298 transformer and 92840 relay. Verify your VA rating, primary\/secondary voltages, and mounting\/receptacle style 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 furnace switch and breaker and verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the furnace control-compartment service panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph all primary (line) and secondary (24V) leads and relay connections before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Disconnect the transformer leads and relay, then remove the mounting screws or unplug the receptacle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new transformer\/relay assembly and reconnect every wire exactly per your photo, keeping primary and secondary leads separate.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and confirm 24V at the secondary and normal thermostat, gas valve, and relay operation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThermostat is blank or unresponsive with line power present.\u003c\/li\u003e\n\u003cli\u003eNo 24V reading at the control board or gas valve.\u003c\/li\u003e\n\u003cli\u003eRepeatedly blown low-voltage fuse, or a buzzing\/overheating transformer.\u003c\/li\u003e\n\u003cli\u003eVisible scorching, melted housing, or burnt smell at the transformer.\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":63021475365235,"sku":"WUGF080AF01","price":37.64,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047397966195,"sku":"WUGF080AF01-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-WUGF080AF01.jpg?v=1782883555","url":"https:\/\/nationalhvacparts.com\/products\/icp-40va-transformer-for-wugf080af01-120v-to-24v-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}