{"product_id":"carrier-gb1aav060125aaja-transformer-h2usbz","title":"OEM Carrier Transformer 40VA 120V-24V for GB1AAV060125AAJA","description":"\u003ch1\u003eOEM Carrier Transformer 40VA 120V to 24V for Model GB1AAV060125AAJA\u003c\/h1\u003e\u003cp\u003eThis OEM step-down transformer (part number \u003cstrong\u003eHT01BC116\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier GB1AAV060125AAJA\u003c\/strong\u003e gas furnace. The transformer converts 120V line voltage down to 24V to power the entire low-voltage control circuit — including the thermostat, control board, gas valve, and safety relays. When the transformer fails, nothing in the system responds: the thermostat goes blank, the furnace won't fire, and the system appears completely dead. A blown transformer is often caused by a wiring short in the 24V circuit, so always inspect low-voltage wiring before installing a replacement.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120V AC | Secondary: 24V AC | Replaces OEM part number HT01BC116 | Factory-matched output voltage and VA capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact VA and voltage tolerances required by the Carrier control board. Undersized or off-tolerance generic units can overheat, trip the internal thermal fuse, or deliver inconsistent 24V output — leading to erratic system behavior and premature control board failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect power at the breaker before beginning. Tools needed: flathead and Phillips screwdrivers, multimeter, wire nuts or quick-connect terminals. Verify the 24V short is resolved before energizing. Photograph all wiring connections prior to removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects in materials and workmanship. Ships same business day from our stocked warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the Carrier \u003cstrong\u003eGB1AAV060125AAJA\u003c\/strong\u003e gas furnace. Confirm primary voltage (120V) and VA rating on your existing transformer's label before ordering. If your system shows a blown fuse or tripped breaker on the 24V side, inspect all thermostat and control wiring for shorts before replacing. Order today — in stock and ships same day.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909412540787,"sku":"CARRIE-GB1AAV060125AAJA-TRANSFORMER-HT01BC116","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909412573555,"sku":"CARRIE-GB1AAV060125AAJA-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_1b4ad630-194c-4760-9c28-576dbea161bb.jpg?v=1782939828","url":"https:\/\/nationalhvacparts.com\/products\/carrier-gb1aav060125aaja-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}