{"product_id":"carrier-kmaba01013tg-transformer-h2usbz","title":"OEM Carrier Transformer 40VA 120V\/24V for KMABA01013TG — HT01BC116","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer for Model KMABA01013TG — Part HT01BC116\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer is the factory-specified replacement for the \u003cstrong\u003eCarrier KMABA01013TG\u003c\/strong\u003e air handler. The transformer steps down line voltage (120V) to the 24V signal used by your thermostat and all low-voltage control components. When this part fails, the entire control circuit goes dead — your thermostat shows no power, no heating or cooling calls are made, and the system appears completely unresponsive. A bad transformer is one of the most commonly misdiagnosed HVAC failures, often mistaken for a bad thermostat or control board.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rated | 120V primary \/ 24V secondary | OEM part number HT01BC116 | Factory-matched output for reliable low-voltage control circuit operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM transformer is wound to Carrier's exact VA and voltage tolerances. Generic transformers often run undersized VA ratings, causing voltage sag under load and nuisance tripping of control boards — especially in multi-stage or communicating systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Shut off power at the disconnect and breaker before servicing. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (verify 24V output after install). Label or photograph all wiring before disconnecting. Always check for a shorted secondary circuit (blown fuse, failed board) before installing 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 KMABA01013TG\u003c\/strong\u003e air handler units. Confirm your unit's data plate shows 120V\/24V control transformer before ordering. If you're unsure of fitment, our parts team verifies compatibility before you buy — order with confidence and get back to comfort fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909311156595,"sku":"CARRIE-KMABA01013TG-TRANSFORMER-HT01BC116","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909311189363,"sku":"CARRIE-KMABA01013TG-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_704c75e0-9258-457c-8b9f-4b6439ff9199.jpg?v=1782941696","url":"https:\/\/nationalhvacparts.com\/products\/carrier-kmaba01013tg-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}