{"product_id":"carrier-gb1aav036035aaja-transformer-h2usbz","title":"OEM Carrier Transformer 40VA 120\/24V for GB1AAV036035AAJA","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 120V\/24V for Model GB1AAV036035AAJA\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 GB1AAV036035AAJA\u003c\/strong\u003e gas furnace. The transformer steps line voltage down from 120V AC to the 24V AC signal required to power the thermostat, control board, gas valve, and all low-voltage components. When this part fails, the entire control circuit goes dead — the thermostat shows no response, the furnace will not initiate a heating cycle, and no diagnostic codes will flash on the control board because there is simply no power to the system's brain.\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 | Direct factory-matched replacement for Carrier GB1AAV036035AAJA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM transformer meets Carrier's exact VA rating and insulation class. Undersized generic transformers can overheat under full control circuit load, tripping internal thermal fuses and causing intermittent or repeated failures that are difficult to diagnose.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power to the furnace at the breaker and disconnect switch before beginning. Tools needed: flathead and Phillips screwdrivers, wire stripper, needle-nose pliers, multimeter (to verify 24V output after install). Label or photograph all low-voltage wiring connections before removing the old transformer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects in materials and workmanship. In-stock units ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered specifically for the Carrier \u003cstrong\u003eGB1AAV036035AAJA\u003c\/strong\u003e gas furnace. Always verify the transformer's primary\/secondary voltage ratings and VA rating on your unit's wiring diagram or data plate before ordering. If you have any questions about fitment, our HVAC parts specialists verify compatibility before you complete your purchase — call or chat today and get your furnace back online fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909431382387,"sku":"CARRIE-GB1AAV036035AAJA-TRANSFORMER-HT01BC116","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909431415155,"sku":"CARRIE-GB1AAV036035AAJA-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_f9592f34-d92b-4876-97b5-b2916d4275bc.jpg?v=1782938712","url":"https:\/\/nationalhvacparts.com\/products\/carrier-gb1aav036035aaja-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}