{"product_id":"carrier-gb1aav060155adja-transformer-h2usbz","title":"OEM Carrier Transformer 40VA 120V-24V for GB1AAV060155ADJA","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer for Model GB1AAV060155ADJA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement transformer (part number \u003cstrong\u003eHT01BC116\u003c\/strong\u003e) designed specifically for the \u003cstrong\u003eCarrier GB1AAV060155ADJA\u003c\/strong\u003e gas furnace. The transformer steps down 120V line voltage to the 24V signal required by your thermostat, control board, gas valve, and all low-voltage control circuit components. When the transformer fails, nothing in the control circuit operates — the thermostat goes dark, the furnace won't respond to any call for heat, and a multimeter check at the secondary terminals will show zero or significantly reduced voltage output.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120V AC | Secondary: 24V AC | Direct OEM replacement | Factory part number HT01BC116 | Screw-terminal or quick-connect leads (match your existing wiring)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact VA and voltage tolerances required by the Carrier control circuit. Undersized or off-tolerance generic transformers can cause nuisance tripping, brown-outs on the 24V circuit, or premature control board failure — making the OEM the safer long-term investment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power to the furnace at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Label or photograph all low-voltage wiring before disconnecting. Confirm 24V output with a multimeter after installation before restoring full power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e This transformer is the factory-specified replacement for the \u003cstrong\u003eCarrier GB1AAV060155ADJA\u003c\/strong\u003e gas furnace. Always verify your existing transformer's VA rating and primary\/secondary voltages against your unit's wiring diagram before ordering. Need fitment help? Our HVAC parts specialists confirm compatibility before you buy — no guesswork.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909408903539,"sku":"CARRIE-GB1AAV060155ADJA-TRANSFORMER-HT01BC116","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909408936307,"sku":"CARRIE-GB1AAV060155ADJA-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_a8d1b7be-1f7b-4b33-9f96-f92e0615b48d.jpg?v=1782939835","url":"https:\/\/nationalhvacparts.com\/products\/carrier-gb1aav060155adja-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}