{"product_id":"carrier-ph3pea048000aa-transformer-h3025m","title":"OEM Carrier Transformer 75VA 208\/240\/480V–24V for PH3PEA048000AA","description":"\u003ch1\u003eOEM Carrier Control Transformer 75VA 208\/240\/480V to 24VAC for Model PH3PEA048000AA\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier transformer (part #HT01BD242) is the factory-specified replacement for the \u003cstrong\u003eCarrier PH3PEA048000AA\u003c\/strong\u003e packaged heat pump unit. The transformer steps down high-voltage supply power to the 24VAC needed by your system's control circuit — powering the thermostat, contactor coil, and all safety controls. When it fails, the entire control circuit goes dead: the thermostat loses power, nothing responds, and the system will not start at all. A failed transformer is often misdiagnosed as a bad thermostat or control board, making correct identification critical before ordering replacement parts.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 75VA power rating | Primary voltage: 208\/240\/480V multi-tap | Secondary voltage: 24VAC | Frequency: 50\/60Hz | Foot-mount configuration | OEM part #HT01BD242\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM transformer wound to exact factory VA and voltage tolerances. Generic alternatives frequently run outside specified tolerance, risking under-voltage conditions that cause erratic contactor chatter, nuisance lockouts, and premature control board failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Disconnect all power at the breaker before starting. Tools needed: multimeter (verify 24VAC output after install), flathead and Phillips screwdrivers, needle-nose pliers, wire labels or tape. Always verify primary tap wiring matches your supply voltage before energizing. If unsure, consult a licensed HVAC technician.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In-stock units ship same business day from our warehouse when ordered before cutoff.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as a direct OEM replacement for \u003cstrong\u003eCarrier model PH3PEA048000AA\u003c\/strong\u003e packaged heat pump units. The HT01BD242 is also used across multiple Carrier, Bryant, and Payne platforms — confirm your unit's supply voltage matches a supported primary tap (208V, 240V, or 480V) before installation. Have your model and serial number ready? Our fitment team verifies compatibility before you order — reach out today and ship the same day.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641349165427,"sku":"CARRIE-PH3PEA048000AA-TRANSFORMER-HT01BD242","price":70.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641349198195,"sku":"CARRIE-PH3PEA048000AA-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_cc364823-14fa-4931-a270-959005860685.jpg?v=1782943294","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph3pea048000aa-transformer-h3025m","provider":"National HVAC Parts","version":"1.0","type":"link"}