{"product_id":"carrier-c4850c50zg060200-transformer-h302a1","title":"OEM Carrier 40VA 120V to 24V Control Transformer for C4850C50ZG060200 — Ships Today","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer for Model C4850C50ZG060200\u003c\/h1\u003e\u003cp\u003eThis is the factory-specified OEM control transformer (part# \u003cstrong\u003eHT01BD236\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier C4850C50ZG060200\u003c\/strong\u003e packaged gas\/electric unit. The transformer steps down 120V line voltage to 24V to power the low-voltage control circuit — including the thermostat, contactor coil, gas valve, and all safety controls. When this transformer fails, the entire control circuit goes dead: the thermostat goes blank, nothing responds to a call for heating or cooling, and the system appears completely lifeless. A failed transformer is often mistaken for a thermostat or control board failure, making correct diagnosis critical before replacing more expensive components.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rated | Primary: 120V | Secondary: 24V | OEM part number HT01BD236 | Factory-matched output tolerance for stable control circuit operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers from Carrier are wound to exact VA and voltage specifications. Undersized or off-tolerance generic units can sag under load, causing erratic contactor chatter, nuisance lockouts, and premature control board failure — making OEM the only recommended choice for reliable long-term operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect all power before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (verify 0V before touching primary leads). Label all low-voltage wires prior to removal. Confirm 24V output on secondary before reassembly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Ships same business day from our NationalHVACParts.com warehouse when ordered before cutoff.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the Carrier \u003cstrong\u003eC4850C50ZG060200\u003c\/strong\u003e 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're unsure of fitment, our parts specialists can confirm compatibility before you purchase. In stock and ready to ship today — get your system back online fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909778395507,"sku":"CARRIE-C4850C50ZG060200-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909778428275,"sku":"CARRIE-C4850C50ZG060200-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_b12829f8-5ea8-4886-90e7-109e6a930800.jpg?v=1782899214","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c4850c50zg060200-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}