{"product_id":"carrier-c4850c48zg060600-transformer-h302a1","title":"OEM Carrier 40VA 120V to 24V Transformer for C4850C48ZG060600 | National HVAC Parts","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA for Model C4850C48ZG060600 (HT01BD236)\u003c\/h1\u003e\u003cp\u003eThis OEM replacement control transformer (part# \u003cstrong\u003eHT01BD236\u003c\/strong\u003e) is the factory-specified unit for the \u003cstrong\u003eCarrier C4850C48ZG060600\u003c\/strong\u003e packaged gas\/electric unit. The transformer steps down line voltage (120V) to 24V AC to power the entire low-voltage control circuit — including the thermostat, contactor coil, gas valve, and all safety controls. When it fails, nothing in the system responds: the thermostat goes blank, the unit won't start, and no error codes appear because the control board itself has lost power.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rated | Primary: 120V AC | Secondary: 24V AC | OEM part number HT01BD236 | Compatible with single-phase packaged unit control circuits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e The OEM HT01BD236 transformer meets Carrier's exact VA rating and insulation class. Undersized or off-brand transformers can overheat when multiple 24V loads (gas valve + contactor + board) draw simultaneously, causing nuisance trips or premature failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect all power before servicing. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter to confirm 24V output after installation. Note wire color and terminal labeling before disconnecting the old unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. In-stock units ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the Carrier \u003cstrong\u003eC4850C48ZG060600\u003c\/strong\u003e packaged unit. Always verify your existing transformer's VA rating and primary\/secondary voltages on the unit data plate or wiring diagram before ordering. Our HVAC parts specialists are available to confirm fitment — don't guess on control circuit components. Order today and get same-day shipping on in-stock parts.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909862412659,"sku":"CARRIE-C4850C48ZG060600-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909862445427,"sku":"CARRIE-C4850C48ZG060600-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_12031ff5-6c75-4c83-bf0a-97afb9991955.jpg?v=1782899387","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c4850c48zg060600-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}