{"product_id":"carrier-gb1aav060111agja-transformer-h3hvc4","title":"OEM Carrier 40VA Transformer 24V Control Circuit — GB1AAV060111AGJA","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer HT01CN001 for Model GB1AAV060111AGJA\u003c\/h1\u003e\u003cp\u003eThis OEM replacement control transformer (part# \u003cstrong\u003eHT01CN001\u003c\/strong\u003e) is the factory-specified unit for the \u003cstrong\u003eCarrier GB1AAV060111AGJA\u003c\/strong\u003e gas furnace. The transformer steps down line voltage from 120V AC to 24V AC, powering the low-voltage control circuit that operates your thermostat, gas valve, inducer relay, and all control board logic. When this component fails, the entire control circuit goes dead — nothing responds, the thermostat goes blank, and the furnace will not attempt to fire under any condition.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120V AC | Secondary: 24V AC | Factory-matched impedance and thermal protection | Direct OEM replacement for part number HT01CN001\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers from Carrier are wound to exact VA and voltage tolerances, ensuring stable 24V output under full load. Generic alternatives frequently run under-rated VA, causing voltage sag that trips boards and confuses thermostats — leading to misdiagnosis and repeat service calls.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter to verify 24V output after install. Label all wiring before disconnecting the old transformer.\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 Engineered specifically for the \u003cstrong\u003eCarrier GB1AAV060111AGJA\u003c\/strong\u003e gas furnace. Verify your existing transformer's VA rating and primary\/secondary voltage on the unit's data plate or wiring diagram before ordering. This is a direct drop-in replacement for OEM part number HT01CN001. Need help confirming fitment? Our HVAC parts specialists verify compatibility before you buy — no guesswork, no returns.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909412868467,"sku":"CARRIE-GB1AAV060111AGJA-TRANSFORMER-HT01CN001","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909412901235,"sku":"CARRIE-GB1AAV060111AGJA-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_41490e56-ff04-4099-98a4-4e1bf4594a98.jpg?v=1782899837","url":"https:\/\/nationalhvacparts.com\/products\/carrier-gb1aav060111agja-transformer-h3hvc4","provider":"National HVAC Parts","version":"1.0","type":"link"}