{"product_id":"carrier-gb1aav036065abja-transformer-h2usbz","title":"OEM Carrier Transformer 40VA 120V\/24V for GB1AAV036065ABJA","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer HT01BC116 for Model GB1AAV036065ABJA\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer (part number \u003cstrong\u003eHT01BC116\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier GB1AAV036065ABJA\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 circuits. When it fails, the entire control circuit goes dead — your thermostat goes blank, the system won't respond to any commands, and the furnace will not attempt to start. A failed transformer is often mistaken for a bad control board, so always confirm 24V output at the secondary terminals before condemning more expensive components.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | 120V primary \/ 24V secondary | Single-phase | Factory-matched output tolerance for stable low-voltage circuit operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e The OEM HT01BC116 transformer is wound and rated to Carrier's exact VA and voltage specifications. Generic alternatives frequently run low on VA capacity, causing nuisance tripped fuses and intermittent control circuit dropouts under full load.\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, wire nuts or quick-connect terminals, and a multimeter to verify 24V output after installation. Label all low-voltage wires before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. 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 Engineered for the Carrier \u003cstrong\u003eGB1AAV036065ABJA\u003c\/strong\u003e gas furnace. Verify your existing transformer's VA rating and primary\/secondary voltages on the unit data plate before ordering to ensure a proper match. Not sure it fits? Contact our HVAC parts specialists — we confirm fitment before you buy. \u003cstrong\u003eIn stock and ships today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909428433267,"sku":"CARRIE-GB1AAV036065ABJA-TRANSFORMER-HT01BC116","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909428466035,"sku":"CARRIE-GB1AAV036065ABJA-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_829bafc0-9ac7-4686-be40-74305a3085df.jpg?v=1782941362","url":"https:\/\/nationalhvacparts.com\/products\/carrier-gb1aav036065abja-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}