{"product_id":"carrier-ga1aad036085aaja-transformer-h2usbz","title":"OEM Carrier Transformer 40VA 120V\/24V for GA1AAD036085AAJA","description":"\u003ch1\u003eOEM Carrier Transformer 40VA 120V\/24V for Model GA1AAD036085AAJA\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 GA1AAD036085AAJA\u003c\/strong\u003e packaged unit. The transformer steps line voltage down from 120V to the 24V signal required by your thermostat, control board, contactor coil, and all low-voltage safety circuits. When it fails, the entire control circuit goes dark — your thermostat will display nothing, the system won't respond to calls for heating or cooling, and you may find a blown fuse on the control board as a secondary symptom.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Input 120VAC | Output 24VAC | 40VA rating | OEM part number HT01BC116 | Factory wire lead configuration for direct replacement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM unit is wound to exact Carrier factory tolerances, ensuring stable 24V output under full VA load. Generic transformers frequently run low-voltage under load, causing intermittent lockouts, nuisance tripping, and premature contactor coil failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect power at the breaker and verify zero voltage with a multimeter before beginning. Tools needed: flathead and Phillips screwdrivers, multimeter, wire nuts or spade connectors. Label all low-voltage wiring before disconnecting. Always replace the fuse if one was found blown during diagnosis.\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 Designed as a direct OEM replacement for the Carrier \u003cstrong\u003eGA1AAD036085AAJA\u003c\/strong\u003e packaged unit. Verify your existing transformer's input\/output voltage and VA rating on the unit's data plate or transformer label before ordering. Our parts specialists are available to confirm fitment — contact us before you order if you have any questions.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909453468019,"sku":"CARRIE-GA1AAD036085AAJA-TRANSFORMER-HT01BC116","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909453500787,"sku":"CARRIE-GA1AAD036085AAJA-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_cf6ea5df-9617-4122-bd59-fa6995d65a03.jpg?v=1782941311","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ga1aad036085aaja-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}