{"product_id":"carrier-gb3aav036050abja-transformer-h2usbz","title":"OEM Carrier Transformer 40VA 120V\/24V for GB3AAV036050ABJA","description":"\u003ch1\u003eOEM Carrier Transformer 40VA 120V to 24V for Model GB3AAV036050ABJA\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 GB3AAV036050ABJA\u003c\/strong\u003e gas furnace. The transformer steps down 120V line voltage to the 24V AC signal that powers your thermostat, control board, and all low-voltage control circuits. When the transformer fails, the entire control circuit loses power — the thermostat goes blank, the system will not respond to any calls for heat or cooling, and in many cases nothing in the unit appears to function at all.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Input 120V AC | Output 24V AC | 40VA rated | OEM part number HT01BC116 | Factory-matched windings and thermal protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to factory VA ratings with integrated thermal overload protection, preventing burnout from control board shorts. Generic alternatives frequently underrate VA capacity, leading to premature failure and potential control board damage.\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, needle-nose pliers, wire nuts or quick-connect terminals, non-contact voltage tester. Photograph all wiring before removal. Confirm 24V output with a multimeter after installation before restoring full power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In-stock units ship the same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed specifically for the Carrier \u003cstrong\u003eGB3AAV036050ABJA\u003c\/strong\u003e gas furnace. Verify your existing transformer's input\/output voltage and VA rating on the data plate or existing unit label before ordering. If you are unsure of fitment, our HVAC parts specialists can confirm compatibility before you purchase — reach out before placing your order.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909401661811,"sku":"CARRIE-GB3AAV036050ABJA-TRANSFORMER-HT01BC116","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909401694579,"sku":"CARRIE-GB3AAV036050ABJA-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_e20d5e54-fb24-484a-9305-672bcb6a24e3.jpg?v=1782941417","url":"https:\/\/nationalhvacparts.com\/products\/carrier-gb3aav036050abja-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}