{"product_id":"carrier-gb1aav060111acja-transformer-h2usbz","title":"OEM Carrier Transformer 40VA 120V-24V for GB1AAV060111ACJA","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer HT01BC116 for Model GB1AAV060111ACJA\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer (part number \u003cstrong\u003eHT01BC116\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier GB1AAV060111ACJA\u003c\/strong\u003e gas furnace. The transformer steps down line voltage from 120V to 24V AC to power the low-voltage control circuit — including the thermostat, control board, gas valve, and safety switches. When this transformer fails, the entire control system loses power: the thermostat goes blank, the furnace won't respond to any calls for heat, and nothing in the low-voltage circuit operates. A blown transformer is often caused by a wiring short in the 24V circuit, so inspect low-voltage wiring before installing the replacement.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | 120V primary \/ 24V secondary | OEM part number HT01BC116 | Factory-matched for Carrier GB1AAV060111ACJA control circuit requirements\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM transformer is wound and rated to exact Carrier factory specifications. Generic transformers often use lower-grade cores with looser VA tolerances, which can cause voltage sag under load and premature control board failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Verify 120V input and 24V output after installation. Photograph all wiring connections before disconnecting the old unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered for the Carrier \u003cstrong\u003eGB1AAV060111ACJA\u003c\/strong\u003e gas furnace. Confirm your existing transformer's VA rating and primary\/secondary voltages on the unit's data plate or wiring diagram before ordering. Our fitment team is available to verify compatibility before you buy — ships same day when ordered before 3PM.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909414080883,"sku":"CARRIE-GB1AAV060111ACJA-TRANSFORMER-HT01BC116","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909414113651,"sku":"CARRIE-GB1AAV060111ACJA-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_26e6875f-fd83-422d-ba49-ce66ba5320c0.jpg?v=1782939825","url":"https:\/\/nationalhvacparts.com\/products\/carrier-gb1aav060111acja-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}