{"product_id":"carrier-gb1aav024065afja-transformer-h3hvc4","title":"OEM Carrier Transformer 40VA 120\/24V for GB1AAV024065AFJA","description":"\u003ch1\u003eOEM Carrier Transformer 40VA 120V to 24V for Model GB1AAV024065AFJA\u003c\/h1\u003e\u003cp\u003eThis is the OEM factory-specified step-down transformer (part number \u003cstrong\u003eHT01CN001\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier GB1AAV024065AFJA\u003c\/strong\u003e gas furnace. The transformer converts 120V line voltage to the 24V signal required to power the control board, thermostat, and all low-voltage control circuits. When this component fails, the entire control circuit goes dead — your thermostat will appear unresponsive, the furnace won't fire, and the system will not respond to any call for heat or cooling. It is one of the first components to check when a unit shows zero activity.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rated | 120V primary input | 24V secondary output | Class 2 transformer | Direct OEM replacement for part number HT01CN001\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM unit is wound to Carrier's exact VA rating and insulation class, ensuring reliable 24V output under full control-circuit load. Undersized generic transformers can sag voltage under load, causing intermittent lockouts, erratic board behavior, and premature failure of downstream components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Verify 24V output after installation before closing the panel.\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\u003eGB1AAV024065AFJA\u003c\/strong\u003e gas furnace. Always confirm the OEM part number HT01CN001 and your unit's data plate voltage ratings match before ordering. Our fitment team is available to verify compatibility prior to purchase — order with confidence and get your system back up today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909433348467,"sku":"CARRIE-GB1AAV024065AFJA-TRANSFORMER-HT01CN001","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909433381235,"sku":"CARRIE-GB1AAV024065AFJA-TRANSFORMER-HT01CN001-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-HT01CN001_e47a47cd-426c-4429-94a8-6e0c27a92dd0.jpg?v=1782938704","url":"https:\/\/nationalhvacparts.com\/products\/carrier-gb1aav024065afja-transformer-h3hvc4","provider":"National HVAC Parts","version":"1.0","type":"link"}