{"product_id":"carrier-gb1aav024065abja-transformer-h2usbz","title":"OEM Carrier 40VA Transformer HT01BC116 for GB1AAV024065ABJA","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer HT01BC116 for Model GB1AAV024065ABJA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement control transformer for the \u003cstrong\u003eCarrier GB1AAV024065ABJA\u003c\/strong\u003e gas furnace. The transformer steps down 120V line voltage to 24V AC to power the entire low-voltage control circuit — including the thermostat, control board, gas valve, and all safety switches. When it fails, nothing in the system responds: the thermostat goes dark, the furnace won't fire, and no error codes appear because even the control board has lost its power source. If you've already confirmed 120V at the primary but zero volts at the secondary, this transformer is your fix.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 120V primary | 24V secondary | 40VA rating | OEM part number HT01BC116 | Factory-matched wire leads and mounting configuration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM Carrier transformers are wound to exact VA and voltage tolerances for this furnace's control circuit load. Undersized or off-spec generic transformers can overheat, trip their internal fuse prematurely, or deliver unstable 24V that causes nuisance lockouts and erratic board behavior.\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, multimeter, wire stripper, wire nuts or spade connectors. Always verify 120V is absent before touching the primary wiring. Label all leads before disconnecting.\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 for the Carrier \u003cstrong\u003eGB1AAV024065ABJA\u003c\/strong\u003e gas furnace. Verify your existing transformer's primary voltage (120V), secondary voltage (24V), and VA rating (40VA) against your unit's data plate before ordering. OEM part number \u003cstrong\u003eHT01BC116\u003c\/strong\u003e cross-references directly to this unit. Our fitment team is available to confirm compatibility before you place your order — reach out before you buy if you have any doubts.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909434986867,"sku":"CARRIE-GB1AAV024065ABJA-TRANSFORMER-HT01BC116","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909435019635,"sku":"CARRIE-GB1AAV024065ABJA-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_5185bfd3-fa40-411b-ac55-819c04786fe1.jpg?v=1782899944","url":"https:\/\/nationalhvacparts.com\/products\/carrier-gb1aav024065abja-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}