{"product_id":"carrier-gb1aav024070afja-transformer-h2usbz","title":"OEM Carrier Transformer 40VA 120\/24V for GB1AAV024070AFJA","description":"\u003ch1\u003eOEM Carrier Transformer 40VA 120V\/24V for Model GB1AAV024070AFJA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement transformer (part number \u003cstrong\u003eHT01BC116\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier GB1AAV024070AFJA\u003c\/strong\u003e gas furnace. The transformer steps down line voltage from 120V to the 24V signal required to power the control board, thermostat circuit, and all low-voltage safety controls. When the transformer fails, the entire control circuit goes dead — the thermostat display may go blank, the system will not respond to any calls for heat or cooling, and no diagnostic fault codes will appear because the board itself has no power to operate.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rated | Primary: 120V | Secondary: 24V | OEM part number HT01BC116 | Factory-matched construction for full control circuit compatibility\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e The OEM HT01BC116 transformer is wound to exact VA tolerances for the GB1AAV024070AFJA control board. Undersized generic transformers can sag under load, causing intermittent lockouts, nuisance tripping on the integrated circuit breaker, and premature board failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power at the breaker and disconnect switch before beginning. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Label or photograph all low-voltage wiring connections before removal. The transformer typically mounts to the furnace cabinet with two screws and connects via spade or wire-nut terminals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Orders placed before cutoff ship same business day from our climate-controlled warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the Carrier \u003cstrong\u003eGB1AAV024070AFJA\u003c\/strong\u003e gas furnace. Confirm existing transformer VA rating and primary\/secondary voltages on the data plate or original unit label before ordering. If you are unsure of fitment, our HVAC parts specialists can verify compatibility before you purchase — same-day shipping available on all in-stock OEM components.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909432299891,"sku":"CARRIE-GB1AAV024070AFJA-TRANSFORMER-HT01BC116","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909432332659,"sku":"CARRIE-GB1AAV024070AFJA-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_71f827c1-1eb1-491a-84d3-2b7f8b6250f5.jpg?v=1782938709","url":"https:\/\/nationalhvacparts.com\/products\/carrier-gb1aav024070afja-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}