{"product_id":"carrier-gb3aav036070agja-transformer-h2usbz","title":"OEM Carrier Transformer 40VA 24V for GB3AAV036070AGJA — HT01BC116","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA for Model GB3AAV036070AGJA (HT01BC116)\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer is the factory-specified replacement for the \u003cstrong\u003eCarrier GB3AAV036070AGJA\u003c\/strong\u003e gas furnace. The transformer steps down line voltage (120V) to the 24V AC signal required to power the thermostat, control board, gas valve, and all low-voltage control components. When this transformer fails, the entire control circuit goes dead — the thermostat goes blank, the system shows no response, and nothing operates. It is one of the first components to check when a furnace appears completely unresponsive.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120V | Secondary: 24V AC | OEM Part Number HT01BC116 | Factory-matched output tolerance for reliable low-voltage control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM transformer delivers factory-correct 24V output under full load. Generic transformers often run under-rated VA, causing voltage sag that triggers nuisance lockouts, board faults, and premature contactor wear throughout the control circuit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Shut off power at the breaker and disconnect the furnace before beginning. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Label or photograph all wire connections before removing the old transformer. Verify primary and secondary terminals match your wiring before energizing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered and factory-matched for the Carrier \u003cstrong\u003eGB3AAV036070AGJA\u003c\/strong\u003e gas furnace. Always verify the 40VA rating and 120V\/24V input-output specification on your unit's data plate before ordering. Our team is available to confirm fitment — order with confidence and get your system back online fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909397041523,"sku":"CARRIE-GB3AAV036070AGJA-TRANSFORMER-HT01BC116","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909397074291,"sku":"CARRIE-GB3AAV036070AGJA-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_2a5e4735-43e0-489f-9d35-ee6a8e2a723e.jpg?v=1782942603","url":"https:\/\/nationalhvacparts.com\/products\/carrier-gb3aav036070agja-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}