{"product_id":"carrier-gb3aav024070abja-transformer-h2usbz","title":"OEM Carrier Transformer 40VA 120\/24V for GB3AAV024070ABJA","description":"\u003ch1\u003eOEM Carrier Transformer 40VA 120V\/24V for Model GB3AAV024070ABJA\u003c\/h1\u003e\u003cp\u003eThis OEM replacement transformer (part number \u003cstrong\u003eHT01BC116\u003c\/strong\u003e) is the factory-specified control circuit transformer for the \u003cstrong\u003eCarrier GB3AAV024070ABJA\u003c\/strong\u003e gas furnace. The transformer steps down 120V line voltage to the 24V AC signal that powers your thermostat, control board, gas valve, and all low-voltage safety controls. When this component fails, the entire control circuit goes dead — nothing responds, the thermostat goes blank, and the furnace will not attempt to start. If your system is completely unresponsive and you've already ruled out a tripped breaker, a failed transformer is one of the first components to test.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120V AC | Secondary: 24V AC | OEM part number HT01BC116 | Factory-matched output for Carrier low-voltage control circuits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM unit is wound to exact factory VA and voltage tolerances. Undersized or off-tolerance generic transformers can overload under peak demand from multiple low-voltage devices, causing nuisance trips or premature failure of the control board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off power at the breaker before starting. Tools needed: flathead and Phillips screwdriver, multimeter, wire nuts. Label or photograph all wiring connections before disconnecting. Verify output voltage with a multimeter after installation before restoring full power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before cutoff.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the Carrier \u003cstrong\u003eGB3AAV024070ABJA\u003c\/strong\u003e gas furnace. Always verify the OEM part number \u003cstrong\u003eHT01BC116\u003c\/strong\u003e against your unit's data plate and wiring diagram before ordering. Our team is available to confirm fitment prior to purchase — don't let a cold night wait. Order today and ship today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909404348787,"sku":"CARRIE-GB3AAV024070ABJA-TRANSFORMER-HT01BC116","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909404381555,"sku":"CARRIE-GB3AAV024070ABJA-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_a0b14a49-58b0-454f-8a5f-1fe594f87696.jpg?v=1782938740","url":"https:\/\/nationalhvacparts.com\/products\/carrier-gb3aav024070abja-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}