{"product_id":"carrier-c4850c50ak04151-transformer-h302a1","title":"OEM Carrier Transformer 40VA 120V to 24V Control Transformer for C4850C50AK04151 — Ships Today","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer for Model C4850C50AK04151\u003c\/h1\u003e\u003cp\u003eThis is the OEM factory-specified control transformer (part number \u003cstrong\u003eHT01BD236\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier C4850C50AK04151\u003c\/strong\u003e packaged unit. The transformer steps down 120V line voltage to the 24V AC signal required by your thermostat, contactor coil, and all low-voltage control circuits. When this component fails, the entire control system loses power — nothing responds: no thermostat display, no contactor energizing, no fan or heat staging. It is one of the first components to check when a unit appears completely dead despite confirmed line voltage at the disconnect.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120V | Secondary: 24V AC | OEM part number HT01BD236 | Factory-matched wire leads and mounting footprint for direct drop-in replacement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM transformer meets Carrier's exact VA rating and insulation class, ensuring the control board and contactor coil receive stable, clean 24V power. Undersized generic transformers can sag under load, causing nuisance lockouts and premature control board failures.\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. Confirm 120V at primary leads before condemning the transformer. Label all low-voltage wiring connections prior to removal.\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 Designed as a direct OEM replacement for Carrier model \u003cstrong\u003eC4850C50AK04151\u003c\/strong\u003e packaged units. Verify your existing transformer's VA rating and primary\/secondary voltages on the unit data plate before ordering. Our parts specialists are available to confirm fitment — order with confidence and get your system back online fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909827678579,"sku":"CARRIE-C4850C50AK04151-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909827711347,"sku":"CARRIE-C4850C50AK04151-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_fd701c3e-6d4f-4938-86bf-e223a59e3c00.jpg?v=1782938784","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c4850c50ak04151-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}