{"product_id":"carrier-c4850c48zn060200-transformer-h302a1","title":"OEM Carrier Transformer 40VA 120V to 24V for C4850C48ZN060200 — Ships Today","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA for Model C4850C48ZN060200\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer (part number \u003cstrong\u003eHT01BD236\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier C4850C48ZN060200\u003c\/strong\u003e packaged unit. The transformer steps down 120V line voltage to the 24V signal required by your thermostat, control board, contactor coil, and all other low-voltage control circuit components. When this part fails, the entire control circuit goes dead — your thermostat will show a blank screen or no response, and nothing in the system will operate regardless of thermostat settings.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120VAC | Secondary: 24VAC | OEM Part# HT01BD236 | Factory-matched output tolerance for stable low-voltage control circuits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers maintain tighter voltage regulation under load, protecting sensitive control boards and thermostats from voltage spikes. Generic substitutes may output unstable 24V, causing nuisance lockouts or premature board failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Shut off all power to the unit at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter to verify output voltage after installation. Photograph all wiring connections before disconnecting 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 climate-controlled warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the Carrier \u003cstrong\u003eC4850C48ZN060200\u003c\/strong\u003e packaged unit. Verify your existing transformer's VA rating and primary\/secondary voltages on the unit's data plate before ordering. If your control circuit breaker is tripping repeatedly, inspect low-voltage wiring for shorts before replacing this transformer. Our HVAC parts specialists are available to confirm fitment — order with confidence and get back up and running today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909853794675,"sku":"CARRIE-C4850C48ZN060200-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909853827443,"sku":"CARRIE-C4850C48ZN060200-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_cf562415-c8cf-485c-ba0b-54572bbd1348.jpg?v=1782938836","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c4850c48zn060200-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}