{"product_id":"carrier-c50a202064-transformer-h301d7","title":"OEM Carrier Transformer 40VA 24V for C50A202064 — HT01BD702","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA for Model C50A202064 — Part# HT01BD702\u003c\/h1\u003e\u003cp\u003eThis OEM step-down control transformer is the factory-specified replacement for the \u003cstrong\u003eCarrier C50A202064\u003c\/strong\u003e commercial rooftop unit. It converts 120V line voltage to the 24V AC signal that powers your thermostat, control board, contactors, and all low-voltage control circuits. When this transformer fails, the entire control circuit goes dark — the thermostat goes blank, the system won't respond to any call for heating or cooling, and no safety or staging functions can operate. Replacing a failed transformer is often the fastest path to restoring a completely non-responsive unit.\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 HT01BD702 | Factory-matched for Carrier C50A202064 commercial rooftop applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM transformer is wound and insulated to Carrier's exact VA rating and thermal class. Generic aftermarket transformers frequently drift in output voltage under load, causing nuisance lockouts, erratic staging behavior, and 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 before starting. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter (to verify 24V output after installation). Label or photograph all low-voltage wiring before disconnecting. Standard wire-nut or screw-terminal connections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects in materials and workmanship. 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 for the \u003cstrong\u003eCarrier C50A202064\u003c\/strong\u003e commercial packaged rooftop unit. Verify your unit's control circuit voltage and VA demand on the data plate before ordering — some multi-stage configurations may require a higher VA transformer. Not sure it fits? Our HVAC parts specialists verify fitment before you buy. Order today and receive same-day shipping on all in-stock components.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909716791667,"sku":"CARRIE-C50A202064-TRANSFORMER-HT01BD702","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909716824435,"sku":"CARRIE-C50A202064-TRANSFORMER-HT01BD702-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-HT01BD702_ad51680c-bc8f-48ec-9ae6-466f3b6b824b.jpg?v=1782942524","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c50a202064-transformer-h301d7","provider":"National HVAC Parts","version":"1.0","type":"link"}