{"product_id":"carrier-ph4gpxb60000aa-transformer-h3025m","title":"OEM Carrier Transformer 75VA 208\/240\/480V→24V for PH4GPXB60000AA","description":"\u003ch1\u003eOEM Carrier 75VA Control Transformer HT01BD242 for Model PH4GPXB60000AA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM replacement control transformer for the \u003cstrong\u003eCarrier PH4GPXB60000AA\u003c\/strong\u003e packaged heat pump unit. The transformer steps down high-voltage primary power (208\/240\/480V) to the 24V AC signal required to power your thermostat, control board, contactors, and all low-voltage safety circuits. When this transformer fails, the entire control circuit goes dead — the thermostat goes blank, relays won't pull in, and the system will not respond to any call for heating or cooling. It is one of the first components to check when nothing in the system responds.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 75VA rating | Primary: 208\/240\/480V | Secondary: 24VAC | 50\/60Hz | Foot-mount configuration | OEM Part # HT01BD242\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This factory-original Carrier transformer is wound to exact VA and voltage specifications. Undersized or off-tolerance aftermarket transformers can overheat, nuisance-trip, or fail to supply adequate current to high-draw controls — always use OEM on 75VA commercial-grade applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Disconnect all power before servicing. Tools needed: multimeter (verify 24V output after install), wire stripper, terminal screwdriver, voltage tester. Label all low-voltage wires before removal. Primary wiring must be performed by a licensed technician.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. In-stock orders ship 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 PH4GPXB60000AA\u003c\/strong\u003e packaged heat pump unit. This transformer is also used across compatible Carrier, Bryant, and ICP-family equipment sharing the HT01BD242 specification — verify your unit's primary voltage tap (208\/240V or 480V) on the data plate before installation. Questions about fitment? Our HVAC parts specialists confirm compatibility before you order.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641220059507,"sku":"CARRIE-PH4GPXB60000AA-TRANSFORMER-HT01BD242","price":70.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641220092275,"sku":"CARRIE-PH4GPXB60000AA-TRANSFORMER-HT01BD242-GEN","price":23.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-control-HT01BD242_f715721e-007b-4b30-9f3b-685b46c2a537.jpg?v=1782943354","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph4gpxb60000aa-transformer-h3025m","provider":"National HVAC Parts","version":"1.0","type":"link"}