{"product_id":"carrier-gb1aav024065aeja-transformer-h2usbz","title":"OEM Carrier Transformer 40VA 120V\/24V for GB1AAV024065AEJA","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 120V\/24V for Model GB1AAV024065AEJA\u003c\/h1\u003e\u003cp\u003eThis OEM replacement control transformer (part# \u003cstrong\u003eHT01BC116\u003c\/strong\u003e) is the factory-specified unit for the \u003cstrong\u003eCarrier GB1AAV024065AEJA\u003c\/strong\u003e gas furnace. The transformer steps down line voltage from 120V to 24V AC to power the low-voltage control circuit — including your thermostat, gas valve, and control board. When it fails, absolutely nothing works: the thermostat goes blank, the furnace won't respond to any call for heat or cooling, and you may measure zero volts at the 24V secondary terminals. A blown transformer is often the first suspect when the entire control system goes silent.\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 insulation class and thermal protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact VA and voltage specifications for the Carrier GB1AAV024065AEJA control board's load requirements. Undersized or off-spec generic units can overheat, trip thermal cutoffs prematurely, or fail to sustain voltage under full control-circuit load — leaving you chasing a ghost fault.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect power at the breaker and confirm zero voltage before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Label all wiring connections before removal. The transformer mounts to the blower deck or vestibule panel with two screws; wire connections use spade or screw terminals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Ships same business day from our climate-controlled warehouse when ordered before 3 PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed specifically for the Carrier \u003cstrong\u003eGB1AAV024065AEJA\u003c\/strong\u003e gas furnace. Always verify your existing transformer's VA rating and primary\/secondary voltages on the data plate before ordering to confirm fitment. Our HVAC parts specialists are available to verify compatibility before you purchase — no guesswork required. Order today and get your control circuit back online fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909433807219,"sku":"CARRIE-GB1AAV024065AEJA-TRANSFORMER-HT01BC116","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909433839987,"sku":"CARRIE-GB1AAV024065AEJA-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_c95ce464-78a0-444e-bec6-697db57f543d.jpg?v=1782941351","url":"https:\/\/nationalhvacparts.com\/products\/carrier-gb1aav024065aeja-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}