{"product_id":"carrier-gb1aav060110aaja-transformer-h2usbz","title":"OEM Carrier Transformer 40VA 120V\/24V for GB1AAV060110AAJA","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer for Model GB1AAV060110AAJA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier control transformer (part# \u003cstrong\u003eHT01BC116\u003c\/strong\u003e), factory-specified for the \u003cstrong\u003eCarrier GB1AAV060110AAJA\u003c\/strong\u003e gas furnace. The transformer steps down 120V line voltage to the 24V signal voltage that powers your thermostat, control board, contactor coil, and all low-voltage control wiring. When this transformer fails, the entire control circuit goes dead — your thermostat goes blank, the furnace won't respond to any calls for heat, and nothing in the system initiates. It is often the first component to diagnose when a furnace appears completely unresponsive despite confirmed 120V line power at the unit.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rated | Primary: 120V AC | Secondary: 24V AC | OEM part number HT01BC116 | Toroidal or EI-core design per factory specification | Includes integral auto-reset overcurrent protection on most configurations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This factory OEM transformer is wound to exact VA and impedance specs for the GB1AAV060110AAJA control board. Generic transformers with undersized VA ratings can sag under load, causing intermittent lockouts and nuisance thermostat dropouts — OEM is strongly recommended for this application.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off power at the disconnect before beginning. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Label all 24V wiring before disconnecting. Verify 24V output at secondary terminals before reassembly.\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 NationalHVACParts.com warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed specifically for the Carrier \u003cstrong\u003eGB1AAV060110AAJA\u003c\/strong\u003e gas furnace. Always confirm the 40VA rating and primary\/secondary voltages on your existing transformer's label before ordering. If you have questions about fitment, our HVAC parts specialists verify compatibility before you purchase — no guesswork required.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909414539635,"sku":"CARRIE-GB1AAV060110AAJA-TRANSFORMER-HT01BC116","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909414572403,"sku":"CARRIE-GB1AAV060110AAJA-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_b0bac728-caa7-4236-859a-3fc515a64295.jpg?v=1782941387","url":"https:\/\/nationalhvacparts.com\/products\/carrier-gb1aav060110aaja-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}