{"product_id":"carrier-gb3aav036095acja-transformer-h2usbz","title":"OEM Carrier Transformer 40VA 120V\/24V for GB3AAV036095ACJA","description":"\u003ch1\u003eOEM Carrier 40VA Control Circuit Transformer for Model GB3AAV036095ACJA\u003c\/h1\u003e\u003cp\u003eThis is the OEM factory-replacement control transformer (part number \u003cstrong\u003eHT01BC116\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier GB3AAV036095ACJA\u003c\/strong\u003e gas furnace. The transformer steps down 120V line voltage to 24V to power the entire low-voltage control circuit — including the thermostat, gas valve, inducer relay, and control board. When this component fails, nothing in the system responds: no thermostat call, no ignition attempt, no inducer startup. A blown transformer is often caused by a wiring short in the 24V circuit, so always inspect low-voltage wiring before installing the replacement.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120V | Secondary: 24V | OEM part number HT01BC116 | Factory-matched for full control circuit compatibility\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound and rated to exact factory specifications, ensuring stable 24V output under full load. Generic units frequently underperform at rated VA, causing intermittent lockouts and control board instability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect power at the breaker before servicing. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Always check the 24V circuit for shorts before powering up the new transformer to prevent immediate failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Orders placed before cutoff ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Verified OEM fit for Carrier model \u003cstrong\u003eGB3AAV036095ACJA\u003c\/strong\u003e gas furnace. Confirm existing transformer VA rating and primary\/secondary voltages on your unit's data plate before ordering. Our fitment team is available to verify compatibility before you purchase — ships same day, no hassle returns.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909396386163,"sku":"CARRIE-GB3AAV036095ACJA-TRANSFORMER-HT01BC116","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909396418931,"sku":"CARRIE-GB3AAV036095ACJA-TRANSFORMER-HT01BC116-GEN","price":18.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-control-HT01BC116_2fd9007c-4c3c-43d8-8458-e25fd42799ac.jpg?v=1782941427","url":"https:\/\/nationalhvacparts.com\/products\/carrier-gb3aav036095acja-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}