{"product_id":"carrier-gb1aav060090aaja-transformer-h2usbz","title":"OEM Carrier 40VA Transformer 24V Control Circuit for GB1AAV060090AAJA","description":"\u003ch1\u003eOEM Carrier 40VA Control Circuit Transformer for Model GB1AAV060090AAJA\u003c\/h1\u003e\u003cp\u003eThis is the OEM factory-replacement control transformer (part number \u003cstrong\u003eHT01BC116\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier GB1AAV060090AAJA\u003c\/strong\u003e gas furnace. The transformer steps down 120V line voltage to the 24V signal required by the thermostat, control board, gas valve, and all low-voltage control components. When it fails, the entire control circuit goes dark — your thermostat goes blank, the furnace will not respond to any call for heat or cooling, and you may blow the low-voltage fuse repeatedly. A failed transformer is one of the most commonly misdiagnosed furnace faults, often confused with a bad control board.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rated | 120V primary \/ 24V secondary | Class 2 transformer | Factory-matched OEM part number HT01BC116 | Direct plug-in\/screw-mount fitment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact VA and impedance specs for the GB1AAV060090AAJA control board. Undersized or off-spec generic units can overheat, nuisance-trip on high-demand heating cycles, or damage downstream low-voltage components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, multimeter, needle-nose pliers. Verify incoming 120V is dead before touching primary wires. Photograph all wiring connections before disconnecting. Swap one wire at a time to avoid miswiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. In-stock and ships 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\u003eGB1AAV060090AAJA\u003c\/strong\u003e gas furnace using OEM part number HT01BC116. Confirm your unit's control transformer is rated 40VA 120V\/24V by checking the data plate on your existing transformer before ordering. Our parts specialists are available to verify fitment — order with confidence and get your furnace back online fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909414801779,"sku":"CARRIE-GB1AAV060090AAJA-TRANSFORMER-HT01BC116","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909414834547,"sku":"CARRIE-GB1AAV060090AAJA-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_f80ef9a3-4e0b-4909-8055-4bc8aa7414ed.jpg?v=1782899812","url":"https:\/\/nationalhvacparts.com\/products\/carrier-gb1aav060090aaja-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}