{"product_id":"carrier-c48a606064-transformer-h301d7","title":"OEM Carrier Transformer 40VA 120V\/24V for C48A606064 — HT01BD702","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer for Model C48A606064 — Part HT01BD702\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer (part number \u003cstrong\u003eHT01BD702\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier C48A606064\u003c\/strong\u003e packaged unit. The transformer steps down line voltage from 120V to 24V to power the low-voltage control circuit — including the thermostat, contactor coil, and control board. When this component fails, the entire control circuit loses power: the thermostat goes blank, the system stops responding to calls for heating or cooling, and nothing works despite the unit having full line voltage at the disconnect.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | 120V primary \/ 24V secondary | Designed for Carrier packaged unit control circuits | Factory-matched electrical characteristics for reliable long-term operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers from Carrier are wound to exact VA and impedance specifications, reducing the risk of nuisance tripping, overheating, or premature failure under peak control-circuit load. Generic alternatives may be under-rated and can fail within one season.\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. Always verify 0V at terminals before touching wiring. Label or photograph existing low-voltage wire connections prior to removal.\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 warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered for the Carrier \u003cstrong\u003eC48A606064\u003c\/strong\u003e packaged unit. Verify your existing transformer's primary\/secondary voltage and VA rating on the unit's data plate or wiring diagram before ordering to ensure a correct match. Our parts specialists are available to confirm fitment before you buy — same-day shipping available on all in-stock OEM components.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909724262771,"sku":"CARRIE-C48A606064-TRANSFORMER-HT01BD702","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909724295539,"sku":"CARRIE-C48A606064-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_9be49446-a3eb-40f1-ac9f-cb7156f276c3.jpg?v=1782940263","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c48a606064-transformer-h301d7","provider":"National HVAC Parts","version":"1.0","type":"link"}