{"product_id":"carrier-c50a502552-transformer-h302a1","title":"OEM Carrier Transformer 40VA 120V\/24V for C50A502552","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 120V\/24V for Model C50A502552\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier transformer (part number \u003cstrong\u003eHT01BD236\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eC50A502552\u003c\/strong\u003e commercial packaged unit. The transformer steps down line voltage from 120V to 24V AC to power the low-voltage control circuit — including the thermostat, contactor coil, gas valve, and control board. When the transformer fails, the entire control circuit goes dead: no thermostat response, no staging, no heating or cooling — nothing works. A failed transformer is often caused by a short or overload downstream in the control circuit, so always inspect low-voltage wiring before replacing.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rated | Primary: 120V AC | Secondary: 24V AC | OEM part number HT01BD236 | Factory-matched output for Carrier commercial controls\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM transformer is wound and tested to Carrier's exact VA and voltage tolerances. Generic transformers may run under-rated VA, causing premature thermal cutout trips and leaving your control circuit under-powered during peak demand.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect power at the breaker before beginning. Tools needed: flathead and Phillips screwdrivers, multimeter, wire stripper. Verify 24V output with a multimeter after installation before restoring full system power. Always check for low-voltage shorts that may have caused the original failure.\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 for the Carrier \u003cstrong\u003eC50A502552\u003c\/strong\u003e commercial rooftop\/packaged unit. Confirm your unit's control circuit voltage and VA requirements on the data plate before ordering. If you're unsure of fitment, our parts team verifies compatibility before your order ships — reach out today and get your system back online fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909675733363,"sku":"CARRIE-C50A502552-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909675766131,"sku":"CARRIE-C50A502552-TRANSFORMER-HT01BD236-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-HT01BD236_a969407e-08fd-4aad-b39b-8a7812f1925d.jpg?v=1782940572","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c50a502552-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}