{"product_id":"carrier-gb3aav060135adja-transformer-h2usbz","title":"OEM Carrier Transformer 40VA 120V-24V for GB3AAV060135ADJA","description":"\u003ch1\u003eOEM Carrier Transformer 40VA 120V to 24V for Model GB3AAV060135ADJA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement transformer (part number \u003cstrong\u003eHT01BC116\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier GB3AAV060135ADJA\u003c\/strong\u003e gas furnace. The transformer steps down 120V line voltage to 24V to power the control board, thermostat circuit, and low-voltage control components throughout the system. When this part fails, the entire control circuit loses power — symptoms include a completely unresponsive thermostat, a blank control board, and a furnace that won't start, heat, or respond to any input despite having line voltage present.\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 to Carrier GB3AAV060135ADJA wiring harness and control board\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound and rated to exact factory VA specifications. Undersized generic units can overheat under full control circuit load, blowing the internal thermal fuse and failing prematurely — often within a single heating season.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Check for shorted low-voltage wiring before installing the new transformer, as a wiring short is the most common cause of transformer failure and will damage the replacement unit immediately.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. In-stock units ship same business day from our warehouse when ordered before 3 PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed and factory-specified for the \u003cstrong\u003eCarrier GB3AAV060135ADJA\u003c\/strong\u003e gas furnace. Cross-reference OEM part number HT01BC116 against your unit's data plate and existing transformer label before ordering. If you need fitment confirmation, our HVAC parts team is available to verify compatibility before you purchase — same-day shipping guaranteed on in-stock parts.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909384950131,"sku":"CARRIE-GB3AAV060135ADJA-TRANSFORMER-HT01BC116","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909384982899,"sku":"CARRIE-GB3AAV060135ADJA-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_64035402-eeb5-4b67-a72e-d2a8496a93b8.jpg?v=1782939863","url":"https:\/\/nationalhvacparts.com\/products\/carrier-gb3aav060135adja-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}