{"product_id":"carrier-c4850c48zg030500-transformer-h302a1","title":"OEM Carrier Transformer 40VA 120\/24V for C4850C48ZG030500","description":"\u003ch1\u003eOEM Carrier Transformer 40VA 120V\/24V for Model C4850C48ZG030500\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement transformer (part number \u003cstrong\u003eHT01BD236\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier C4850C48ZG030500\u003c\/strong\u003e packaged unit. The transformer steps down 120V line voltage to the 24V control circuit voltage that powers your thermostat, contactor coil, and control board. When this component fails, nothing in the control system responds — the thermostat goes blank, the unit won't call for heating or cooling, and you may measure zero voltage on the secondary side of the transformer. It is often the first component to inspect when an otherwise healthy unit goes completely unresponsive.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Primary voltage: 120V AC | Secondary voltage: 24V AC | VA rating: 40VA | OEM part number: HT01BD236 | Factory-matched to Carrier C4850C48ZG030500 packaged unit specifications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact VA and impedance specs for your unit's control circuit. Generic units can deliver inconsistent secondary voltage, causing nuisance lockouts, chattering contactors, or premature control board failure.\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, multimeter, wire nuts or spade connectors. Confirm primary and secondary voltages with a multimeter after installation before closing the panel.\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 specifically for the Carrier \u003cstrong\u003eC4850C48ZG030500\u003c\/strong\u003e packaged unit. Always verify the primary voltage, secondary voltage, and VA rating on your unit's data plate or existing transformer label before ordering. Our fitment team is available to confirm compatibility prior to purchase — order with confidence and get your system back online today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909867884915,"sku":"CARRIE-C4850C48ZG030500-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909867917683,"sku":"CARRIE-C4850C48ZG030500-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_48c32eae-b7cf-4c3e-b466-f34a52c7801f.jpg?v=1782938590","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c4850c48zg030500-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}