{"product_id":"carrier-c50a203061-transformer-h302a1","title":"OEM Carrier Transformer 40VA 120V\/24V for C50A203061","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer for Model C50A203061 — Part# HT01BD236\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer (part# HT01BD236) is the factory-specified replacement for the \u003cstrong\u003eCarrier C50A203061\u003c\/strong\u003e commercial rooftop unit. The transformer steps down 120V line voltage to the 24V signal used by the thermostat, control board, contactor coils, and all low-voltage safety circuits. When it fails, nothing in the control system responds — the thermostat goes blank, the unit won't cycle, and diagnostic boards show no activity. It is one of the first components to check when the entire system appears completely dead.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120V | Secondary: 24V | OEM part number HT01BD236 | Designed for continuous commercial duty cycles\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM transformer is wound to exact Carrier factory specifications, ensuring stable 24V output under full load. Generic transformers often run under-spec VA ratings, causing voltage sag that triggers nuisance lockouts, contactor chatter, and premature control board failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect all power before servicing. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter (verify 0V before touching terminals). Label or photograph all low-voltage wiring connections before removal. Output terminals are typically color-coded for straightforward reinstallation.\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 specifically for the \u003cstrong\u003eCarrier C50A203061\u003c\/strong\u003e commercial rooftop packaged unit. Confirm your unit's control circuit voltage and VA requirement on the data plate before ordering. If you're unsure of fitment, our HVAC parts specialists are available to verify compatibility before you purchase — ensuring the right part arrives the first time.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909713940851,"sku":"CARRIE-C50A203061-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909713973619,"sku":"CARRIE-C50A203061-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_b33ebca6-cfbb-4cb9-bb34-48555b35aa9e.jpg?v=1782940348","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c50a203061-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}