{"product_id":"icp-40va-transformer-for-wfml070a036a1-120-240v-to-24v-ships-today-1","title":"ICP 40VA Transformer for WFML070A036A1 — 120\/240V to 24V | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis genuine OEM control transformer (part number 1176944) supplies the 24-volt low-voltage power that runs the WFML070A036A1 furnace's control board, gas valve, thermostat circuit, and safety controls. It steps the 120\/240V line voltage down to a 24V secondary at 40VA. When a transformer fails — usually from a shorted thermostat wire, a stuck contactor, or simple age — the furnace goes completely dead: no thermostat display, no blower, no ignition sequence. Because the entire control system depends on it, the transformer is one of the most critical low-cost components in the unit.\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 Number\u003c\/td\u003e\n\u003ctd\u003e1176944\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 (Heil \/ Tempstar \/ 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\u003e120 \/ 240 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSecondary Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VAC\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\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eDirect-fit replacement for the ICP\/Heil\/Tempstar WFML070A036A1 gas furnace and other ICP-family units calling for a 40VA, 120\/240V-to-24V control transformer. Verify your primary voltage tap before wiring.\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.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the furnace control\/service panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph every primary and secondary lead before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unfasten the mounting screws and disconnect the transformer leads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new transformer, match the correct primary tap (120V vs 240V), and reconnect the 24V secondary per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, confirm 24VAC at the secondary, and verify the thermostat and control board power up.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFurnace is completely unresponsive — no thermostat display\u003c\/li\u003e\n\u003cli\u003eNo 24V reading at the control board or gas valve\u003c\/li\u003e\n\u003cli\u003eBlown low-voltage fuse that keeps failing\u003c\/li\u003e\n\u003cli\u003eBurnt smell or visible scorching on the transformer body\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":63027242074483,"sku":"1176944-GEN","price":34.0,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63047956169075,"sku":"1176944","price":44.2,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-control-1176944_572e806a-78dd-41c5-8caa-1b6674d45a11.jpg?v=1782882754","url":"https:\/\/nationalhvacparts.com\/products\/icp-40va-transformer-for-wfml070a036a1-120-240v-to-24v-ships-today-1","provider":"National HVAC Parts","version":"1.0","type":"link"}