{"product_id":"carrier-c4850c50z2040600-transformer-h302a1","title":"OEM Carrier 40VA 120V to 24V Control Transformer for C4850C50Z2040600 — Ships Today","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer for Model C4850C50Z2040600\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement control transformer (part# \u003cstrong\u003eHT01BD236\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier C4850C50Z2040600\u003c\/strong\u003e packaged unit. The transformer steps down 120V line voltage 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: the thermostat goes blank, the system stops responding to calls for heating or cooling, and no components energize. A failed transformer is often misdiagnosed as a thermostat or control board issue, so always verify 24V output at the secondary terminals before replacing other parts.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120V AC | Secondary: 24V AC | OEM part number HT01BD236 | Factory-matched output voltage and VA capacity for reliable low-voltage circuit performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound and insulated to Carrier's exact specifications, ensuring stable 24V output under full load. Generic units may sag under peak draw, causing intermittent lockouts or nuisance tripping of the control circuit fuse.\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, multimeter, wire nuts or spade terminals. Label or photograph all wire connections before removal. Verify 120V input and 24V output after installation before closing the cabinet.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects in materials and workmanship. In-stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed specifically for the Carrier \u003cstrong\u003eC4850C50Z2040600\u003c\/strong\u003e packaged unit. Always confirm the 40VA rating and 120V\/24V voltage configuration against your unit's wiring diagram and data plate before ordering. Our parts team is available to verify fitment — order with confidence and get back up and running today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909804609907,"sku":"CARRIE-C4850C50Z2040600-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909804642675,"sku":"CARRIE-C4850C50Z2040600-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_68a99c4f-f86d-4efc-8030-fce95ccf3c67.jpg?v=1782899148","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c4850c50z2040600-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}