{"product_id":"carrier-gb3aav060110aaja-transformer-h2usbz","title":"OEM Carrier Transformer 40VA 120V\/24V for GB3AAV060110AAJA","description":"\u003ch1\u003eOEM Carrier Transformer 40VA 120V\/24V for Model GB3AAV060110AAJA\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 GB3AAV060110AAJA\u003c\/strong\u003e gas furnace. The transformer steps line voltage down from 120V to 24V AC to power the furnace control board, thermostat, and all low-voltage safety and switching circuits. When the transformer fails, the entire control circuit goes dark — your thermostat becomes unresponsive, the furnace will not attempt ignition, and no status codes will appear on the board. It is one of the first components to check when absolutely nothing happens on a call for heat.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rated | 120V primary \/ 24V secondary | OEM part number HT01BC116 | Direct drop-in replacement with factory-matched footprint and lead configuration\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 board. Undersized or off-tolerance generic transformers can trip thermal protection under normal load, causing intermittent no-heat complaints that are difficult to diagnose.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect power at the breaker and verify zero voltage before starting. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring connections before disconnecting leads. Replace any blown fuse on the control board at the same time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Orders placed before cutoff ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the Carrier \u003cstrong\u003eGB3AAV060110AAJA\u003c\/strong\u003e gas furnace. Always verify the VA rating and primary\/secondary voltages printed on your existing transformer before ordering to confirm fitment. If you are unsure, our HVAC parts specialists will verify compatibility before your order ships — no guesswork required.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909389177203,"sku":"CARRIE-GB3AAV060110AAJA-TRANSFORMER-HT01BC116","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909389209971,"sku":"CARRIE-GB3AAV060110AAJA-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_89a7d662-d1cf-4b74-ac33-5711f624faf5.jpg?v=1782941455","url":"https:\/\/nationalhvacparts.com\/products\/carrier-gb3aav060110aaja-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}