{"product_id":"carrier-c4850c50zg070500-transformer-h302a1","title":"OEM Carrier 40VA 120V to 24V Control Transformer for C4850C50ZG070500 — Ships Today","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 120V\/24V for Model C4850C50ZG070500\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 C4850C50ZG070500\u003c\/strong\u003e packaged unit. The transformer steps down line voltage from 120V to the 24V AC required to power the thermostat, control board, and all low-voltage control circuits. When this transformer fails, the entire control circuit goes dead — the thermostat goes blank, contactors won't energize, and the system will not respond to any call for heating or cooling.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120V AC | Secondary: 24V AC | Factory OEM part number HT01BD236 | Direct plug-and-play replacement with original mounting footprint\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM transformer is wound to exact factory VA and voltage specifications, ensuring stable 24V output under full control circuit load. Undersized or off-spec generic transformers can produce voltage sag, causing intermittent lockouts and nuisance tripping of the low-voltage fuse.\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, wire nuts or spade connectors. Verify 24V output at secondary terminals after install before restoring low-voltage wiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects in materials and workmanship. Ships same business day from our stocked warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed and factory-matched for the Carrier \u003cstrong\u003eC4850C50ZG070500\u003c\/strong\u003e packaged unit. Confirm primary voltage (120V) and VA rating on your existing transformer's label before ordering. If you're unsure of fitment, our HVAC parts team verifies compatibility before your order ships — reach out today and get your system back online fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909777641843,"sku":"CARRIE-C4850C50ZG070500-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909777674611,"sku":"CARRIE-C4850C50ZG070500-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_8c352f59-581d-4bc4-9377-5d3e3b761954.jpg?v=1782899225","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c4850c50zg070500-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}