{"product_id":"carrier-transformer-gb1aav048091abja","title":"OEM Carrier Transformer HT01BA011 for GB1AAV048091ABJA","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Transformer HT01BA011 for GB1AAV048091ABJA\u003c\/h1\u003e\n\u003cp\u003eThis OEM Carrier transformer (part HT01BA011) steps line voltage down to the 24-volt control power that runs the thermostat, gas valve, and control board on your GB1AAV048091ABJA furnace. When your thermostat goes dark, the furnace is completely unresponsive, or a control fuse keeps blowing, a burned-out transformer is a leading suspect. This genuine Carrier transformer supplies the exact VA capacity your control circuit was designed for, so it powers every accessory without overheating — undersized aftermarket units sag under load and cause intermittent faults. It bolts to the original mounting holes and wires to the same primary and secondary leads. Installation is moderate — shut off power at the breaker, label and transfer the line-voltage and 24V wires to the matching terminals, and confirm 24V at the board on restart. Many homeowners handle it in about 30 minutes, but call a pro if line-voltage wiring makes you uneasy. A blown control fuse often accompanies a failed transformer, so check it too. Order before 3PM CST and your transformer ships same-day.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model GB1AAV048091ABJA.\u003c\/p\u003e\n\u003ch2\u003eShipping\u003c\/h2\u003e\n\u003cp\u003eSame-day shipping before 3 PM CST. 30-day returns on uninstalled parts.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carrier","offers":[{"title":"Default Title","offer_id":62942786978163,"sku":"carrier-transformer-gb1aav048091abja","price":29.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-carrier-transformer-gb_33411a11-c2ad-4349-8702-a8274799238e.jpg?v=1781473859","url":"https:\/\/nationalhvacparts.com\/products\/carrier-transformer-gb1aav048091abja","provider":"National HVAC Parts","version":"1.0","type":"link"}