{"product_id":"carrier-c4850c50aw04051-transformer-h302a1","title":"OEM Carrier Transformer 40VA 120V to 24V for C4850C50AW04051 — Ships Today","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer HT01BD236 for Model C4850C50AW04051\u003c\/h1\u003e\u003cp\u003eThis is the OEM factory replacement transformer (part number \u003cstrong\u003eHT01BD236\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier C4850C50AW04051\u003c\/strong\u003e packaged unit. The transformer steps down 120V primary voltage to the 24V secondary signal that powers your thermostat, control board, contactor coil, and every low-voltage safety circuit in the system. When this transformer fails, the entire control circuit goes dead — your thermostat goes blank, the unit refuses to start, and no fault codes are generated because the board itself has no power to report them.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | 120V primary \/ 24V secondary | OEM part number HT01BD236 | Factory-matched impedance and thermal cutoff protection\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 tolerances. Undersized or off-tolerance generic transformers overheat under load, trip thermal cutoffs prematurely, and can damage sensitive control boards — making OEM the only safe choice for this application.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter, needle-nose pliers. Photograph or label all low-voltage wire connections before removing the old transformer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. 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 \u003cstrong\u003eCarrier C4850C50AW04051\u003c\/strong\u003e packaged unit. Always verify the 40VA rating and 120V\/24V configuration against your unit's wiring diagram and data plate before ordering. Our parts specialists are available to confirm fitment — reach out before you order if you have any questions. Order today and get same-day shipping to get your system back up fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909818798451,"sku":"CARRIE-C4850C50AW04051-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909818831219,"sku":"CARRIE-C4850C50AW04051-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_e5044a22-f250-499e-a922-6aba0c14ec3d.jpg?v=1782938915","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c4850c50aw04051-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}