{"product_id":"carrier-c50a506051-transformer-h302a1","title":"OEM Carrier Transformer 40VA 120V\/24V for C50A506051","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer HT01BD236 for Model C50A506051\u003c\/h1\u003e\u003cp\u003eThis OEM replacement transformer (part number \u003cstrong\u003eHT01BD236\u003c\/strong\u003e) is the factory-specified step-down transformer for the \u003cstrong\u003eCarrier C50A506051\u003c\/strong\u003e commercial packaged unit. The transformer converts 120V line voltage to the 24V signal required by your thermostat, control board, contactor coil, and all low-voltage control circuit components. When this part fails, the entire control circuit goes dead — the thermostat display may go blank, the system will not respond to any calls for heating or cooling, and nothing will start. It is often the first component to check when a unit appears completely unresponsive despite confirmed line voltage at the disconnect.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rated | Primary: 120V | Secondary: 24V | Class 2 control transformer | OEM part number HT01BD236 | Factory-matched for C50A506051 wiring harness and mounting configuration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM unit is wound to exact VA and voltage tolerance specifications. Generic transformers frequently run undersized VA ratings, causing them to overheat and fail prematurely — especially under the multi-zone control loads common in commercial packaged units like the C50A506051.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Shut off all power at the disconnect and verify voltage is absent with a multimeter before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter, wire nuts or spade connectors. Label all low-voltage wiring before disconnecting. Confirm new transformer output reads 24–28V AC before restoring full system power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects in materials and workmanship. Orders placed before cutoff ship same business day from our climate-controlled warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the Carrier \u003cstrong\u003eC50A506051\u003c\/strong\u003e commercial rooftop\/packaged unit. Verify your existing transformer's VA rating and primary\/secondary voltages on the unit data plate or wiring diagram before ordering. If you are unsure of fitment, our HVAC parts specialists are available to confirm compatibility before you purchase — same-day shipping available on all in-stock OEM parts.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909666918771,"sku":"CARRIE-C50A506051-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909666951539,"sku":"CARRIE-C50A506051-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_39642292-dcdc-4600-991e-3908eb656987.jpg?v=1782940644","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c50a506051-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}