{"product_id":"carrier-c4850c48zg035600-transformer-h302a1","title":"OEM Carrier Transformer 40VA 120V\/24V for C4850C48ZG035600","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer HT01BD236 for Model C4850C48ZG035600\u003c\/h1\u003e\u003cp\u003eThis is the OEM factory-specified control transformer for the \u003cstrong\u003eCarrier C4850C48ZG035600\u003c\/strong\u003e packaged unit. The transformer steps line voltage (120V) down to 24V to power the entire low-voltage control circuit — including the thermostat, contactor coil, and control board. When this component fails, the system goes completely unresponsive: the thermostat goes blank, the unit will not call for heating or cooling, and nothing turns on. A failed transformer is often caused by a downstream short in the 24V control wiring, so inspect low-voltage wiring for faults before installing the replacement.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA capacity | Primary: 120V | Secondary: 24V | OEM Part Number: HT01BD236 | Designed to factory tolerances for the C4850C48ZG035600 packaged unit series\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound and rated to exact factory VA and voltage specifications, ensuring full protection for sensitive control boards. Generic replacements may run underrated, causing premature failure and potential control board damage under high-demand conditions.\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, multimeter, wire nuts or spade connectors. Always verify incoming voltage at primary terminals before energizing. Confirm there are no shorts on the 24V secondary circuit before installing the new transformer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before cutoff.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as a direct OEM replacement for the \u003cstrong\u003eCarrier C4850C48ZG035600\u003c\/strong\u003e packaged unit. Verify your existing transformer's VA rating and primary\/secondary voltages on the unit's data plate or wiring diagram before ordering. Need fitment confirmation? Our HVAC parts specialists can verify compatibility before you buy — no guesswork required. \u003cstrong\u003eOrder now and ship today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909866770803,"sku":"CARRIE-C4850C48ZG035600-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909866803571,"sku":"CARRIE-C4850C48ZG035600-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_b651301f-bd95-464a-9093-78843dc1699f.jpg?v=1782940085","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c4850c48zg035600-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}