{"product_id":"carrier-c50a204052-transformer-h302a1","title":"OEM Carrier Transformer 40VA 120V\/24V for C50A204052","description":"\u003ch1\u003eOEM Carrier Transformer 40VA 120V\/24V for Model C50A204052\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement transformer (part number \u003cstrong\u003eHT01BD236\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier C50A204052\u003c\/strong\u003e commercial packaged unit. The transformer steps down 120V line voltage to the 24V signal used by your thermostat, control board, contactor coil, and all low-voltage safety circuits. When this part fails, the entire control circuit goes dark — the thermostat goes blank, the system refuses to start, and no error codes are generated because the board itself has no power. If you've already confirmed your 120V supply is intact and your thermostat is functional, a failed transformer is the next component to test.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120V | Secondary: 24V | OEM part number HT01BD236 | Factory-matched for Carrier C50A204052 commercial packaged equipment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e The OEM HT01BD236 transformer is wound to exact VA and voltage tolerances required by the Carrier C50A204052 control circuit. Generic replacements often run undersized VA ratings that overheat under full control-circuit load, shortening service life significantly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power to the unit before beginning. Tools needed: multimeter, flathead and Phillips screwdrivers, wire stripper, needle-nose pliers. Label or photograph all low-voltage wiring connections before disconnecting. Verify 24V output with a multimeter after installation before restoring full system power.\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 C50A204052\u003c\/strong\u003e commercial packaged unit. Always verify your existing transformer's VA rating and primary\/secondary voltages against your unit's data plate before ordering. Have questions about fitment? Our HVAC parts specialists confirm compatibility before you buy — no guesswork required.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909711876467,"sku":"CARRIE-C50A204052-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909711909235,"sku":"CARRIE-C50A204052-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_f1cf3bfa-c68f-4c83-a4e2-dcc7c3966cc7.jpg?v=1782940370","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c50a204052-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}