{"product_id":"carrier-c4850c50aw04151-transformer-h302a1","title":"OEM Carrier Transformer 40VA 120V to 24V for C4850C50AW04151 — Ships Today","description":"\u003ch1\u003eOEM Carrier Transformer 40VA 120V–24V for Model C4850C50AW04151\u003c\/h1\u003e\u003cp\u003eThis OEM replacement transformer (part number \u003cstrong\u003eHT01BD236\u003c\/strong\u003e) is the factory-specified control circuit transformer for the \u003cstrong\u003eCarrier C4850C50AW04151\u003c\/strong\u003e packaged unit. The transformer steps line voltage (120V) down to the 24V signal voltage that powers your thermostat, control board, contactor coil, and all low-voltage controls. When this component fails, the entire control circuit goes dark — the thermostat displays nothing, the system refuses to respond to calls for heating or cooling, and you may blow a 3A fuse repeatedly as a symptom of a shorted secondary winding.\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 to factory tolerance for the Carrier C4850C50AW04151 packaged unit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM transformer is wound and insulated to Carrier's exact VA and thermal specifications. Generic transformers frequently underrate their true VA capacity, leading to premature overheating, nuisance fuse failures, and reduced service life in demanding packaged-unit applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Shut off all power at the disconnect before servicing. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, wire stripper, and a multimeter to confirm 24V output on the secondary after installation. Label or photograph all low-voltage wiring connections before removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Orders placed before cutoff ship same business day from our HVAC parts warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered specifically for the Carrier \u003cstrong\u003eC4850C50AW04151\u003c\/strong\u003e packaged unit. Always verify your unit's data plate voltage requirements and existing transformer VA rating before ordering to ensure a direct fit. Not sure it's the right part? Our HVAC parts specialists confirm fitment before you buy — reach out before placing your order.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909817061747,"sku":"CARRIE-C4850C50AW04151-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909817094515,"sku":"CARRIE-C4850C50AW04151-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_cbd8d28c-705f-4e48-a36d-06ea9ee46bd3.jpg?v=1782938920","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c4850c50aw04151-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}