{"product_id":"carrier-gb1aav060155acja-transformer-h2usbz","title":"OEM Carrier Transformer 40VA 120V-24V for GB1AAV060155ACJA","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer for Model GB1AAV060155ACJA\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 GB1AAV060155ACJA\u003c\/strong\u003e gas furnace. The transformer steps down 120V line voltage to 24V AC, powering the thermostat, control board, gas valve, and all low-voltage control circuits in your system. When this transformer fails, the entire control circuit loses power — the thermostat goes blank, the furnace won't respond to any calls for heat or cooling, and nothing works. A blown transformer is often traced to a shorted control wire, failed contactor coil, or a wiring fault that caused an overcurrent event.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rated | 120V primary input | 24V AC secondary output | Factory OEM part number HT01BC116 | Engineered to exact Carrier tolerance for reliable, long-term control circuit operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to precise VA ratings matching the total low-voltage load of your specific furnace. Undersized or off-tolerance generic units can overheat, trip internal thermal fuses prematurely, or fail to sustain voltage under full load — leading to intermittent lockouts and callbacks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect power at the breaker and confirm voltage is off with a multimeter before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, wire stripper, multimeter. Before replacing, inspect all 24V control wiring for shorts to ground — a shorted wire will destroy the new transformer. Photograph wiring connections before removal.\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 specifically for the \u003cstrong\u003eCarrier GB1AAV060155ACJA\u003c\/strong\u003e gas furnace. Verify your existing transformer's VA rating and primary\/secondary voltages on the data plate before ordering. If you're unsure of fitment, our HVAC parts specialists will confirm compatibility before you purchase — same-day shipping available on all in-stock orders.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909409460595,"sku":"CARRIE-GB1AAV060155ACJA-TRANSFORMER-HT01BC116","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909409493363,"sku":"CARRIE-GB1AAV060155ACJA-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_2ea4451c-1064-4f47-a6f3-ba1a33a6c321.jpg?v=1782939833","url":"https:\/\/nationalhvacparts.com\/products\/carrier-gb1aav060155acja-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}