{"product_id":"carrier-ga1aad024050abja-transformer-h2usbz","title":"OEM Carrier Transformer 40VA 120V\/24V for GA1AAD024050ABJA","description":"\u003ch1\u003eOEM Carrier Transformer 40VA 120V to 24V for Model GA1AAD024050ABJA\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 GA1AAD024050ABJA\u003c\/strong\u003e packaged unit. The transformer steps down 120V line voltage to the 24V AC signal that powers your thermostat, control board, contactor coil, and all low-voltage safety controls. When the transformer fails, the entire control circuit goes dark — your thermostat will display nothing or fail to communicate, and the system will not respond to any heating or cooling calls. A blown transformer is often caused by a short in the low-voltage wiring or a failed component drawing excess current; always inspect the secondary circuit before installing a replacement.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Input 120V AC | Output 24V AC | 40VA rating | OEM part number HT01BC116 | Factory-matched for the Carrier GA1AAD024050ABJA control circuit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM transformer is wound and insulated to Carrier's exact VA and voltage specifications. Generic transformers may carry looser VA tolerances, risking under-voltage conditions that cause erratic board behavior or premature contactor coil failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect power at the disconnect box and confirm zero voltage with a multimeter before proceeding. Tools needed: flathead and Phillips screwdrivers, multimeter, wire nuts or spade connectors. Photograph all wiring before disconnecting, and always check for low-voltage shorts before energizing the new transformer.\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 Engineered as a direct OEM replacement for \u003cstrong\u003eCarrier model GA1AAD024050ABJA\u003c\/strong\u003e. Confirm your unit's data plate lists a 120V primary \/ 24V secondary, 40VA control transformer before ordering. Our parts specialists are available to verify fitment — order with confidence and get your system back online today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909454778739,"sku":"CARRIE-GA1AAD024050ABJA-TRANSFORMER-HT01BC116","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909454811507,"sku":"CARRIE-GA1AAD024050ABJA-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_90265995-9aaf-4e02-8005-1cfdc6379921.jpg?v=1782941303","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ga1aad024050abja-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}