{"product_id":"carrier-c4850c50ay06061-transformer-h302a1","title":"OEM Carrier 40VA 120V to 24V Control Transformer for C4850C50AY06061 — Ships Today","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer for Model C4850C50AY06061\u003c\/h1\u003e\u003cp\u003eThis is the OEM factory-replacement control transformer (part number \u003cstrong\u003eHT01BD236\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier C4850C50AY06061\u003c\/strong\u003e packaged unit. The transformer steps down line voltage (120V) to the 24V signal used by your thermostat, control board, contactor coil, and all low-voltage safety circuits. When this component fails, the entire control circuit goes dark — the thermostat shows no response, the system won't call for heating or cooling, and no contactor or valve will energize. A failed transformer is one of the most overlooked causes of a completely unresponsive HVAC system.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120V | Secondary: 24V | OEM part number HT01BD236 | Factory-matched for Carrier C4850C50AY06061 packaged units\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 tolerances. Undersized or off-tolerance generic transformers can trip thermal cutoffs prematurely, overload under multi-zone demand, or produce voltage sag that causes nuisance lockouts on the control board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power at the disconnect before proceeding. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter, needle-nose pliers. Label and photograph all low-voltage wiring connections before removal. Verify 24V output with a multimeter after installation before restoring system operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Orders placed before cutoff ship same business day from our climate-controlled warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered specifically for the \u003cstrong\u003eCarrier C4850C50AY06061\u003c\/strong\u003e packaged unit. Cross-reference OEM part number HT01BD236 against your unit's data plate and wiring diagram before ordering. If you are unsure of fitment, our HVAC parts specialists can verify compatibility before your order ships — no guesswork required.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909807788403,"sku":"CARRIE-C4850C50AY06061-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909807821171,"sku":"CARRIE-C4850C50AY06061-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_674fdd6c-f501-4ca6-b1b0-67f33d299d86.jpg?v=1782899143","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c4850c50ay06061-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}