{"product_id":"icp-40va-transformer-for-wugb130ag01-120v-to-24v-with-spdt-relay-ships-today-1","title":"ICP 40VA Transformer for WUGB130AG01 — 120V to 24V with SPDT Relay | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis OEM transformer assembly powers the 24V control circuit on the ICP\/Heil\/Tempstar WUGB130AG01 gas furnace. It steps 120V line voltage down to 24V at 40VA to feed the thermostat, gas valve, ignition control, and switching relays. The kit pairs the OEM transformer-relay receptacle (part 97298, TRANS RELAY RECEP 120\u0026gt;25 40VA) with a 24V SPDT relay (part 92840). A failed transformer cuts all low-voltage power — the thermostat goes blank, the gas valve cannot open, and the furnace won't start. Buzzing, overheating, or a repeatedly blown control fuse are classic symptoms of a failing 40VA transformer.\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\u003eOEM Part Numbers\u003c\/td\u003e\n\u003ctd\u003e92840 (Relay 24V SPDT), 97298 (Transformer Relay Receptacle)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eControl Transformer w\/ Relay\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\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\u003eRelay\u003c\/td\u003e\n\u003ctd\u003e24V SPDT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eA direct OEM fit for the ICP\/Heil\/Tempstar WUGB130AG01 gas furnace and related platform models using the 40VA 120V-to-24V control transformer. Confirm your model number before ordering.\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 furnace switch and breaker, then verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the furnace control\/blower compartment service panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph all 120V primary and 24V secondary connections before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Disconnect the leads, unbolt the failed transformer from its bracket, and detach the relay from its receptacle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new transformer and relay, reconnecting each wire per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, confirm 24V at the secondary terminals, and verify a normal heat call.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBlank thermostat and unresponsive furnace\u003c\/li\u003e\n\u003cli\u003eBuzzing or humming from the transformer\u003c\/li\u003e\n\u003cli\u003eLow-voltage control fuse blows repeatedly\u003c\/li\u003e\n\u003cli\u003eBurnt smell or scorched transformer windings\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":"Direct Replacement","offer_id":63027201606003,"sku":"92840-GEN","price":29.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63047965278579,"sku":"92840","price":38.94,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-control-92840_e57a59bc-ec1c-47f4-8cd7-7772794cd561.jpg?v=1782883489","url":"https:\/\/nationalhvacparts.com\/products\/icp-40va-transformer-for-wugb130ag01-120v-to-24v-with-spdt-relay-ships-today-1","provider":"National HVAC Parts","version":"1.0","type":"link"}