{"product_id":"carrier-ph2pnb048000ab-transformer-h3025m","title":"OEM Carrier Control Transformer 75VA 208\/240\/480V for PH2PNB048000AB","description":"\u003ch1\u003eOEM Carrier Control Transformer 75VA 208\/240\/480V → 24VAC for Model PH2PNB048000AB\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier transformer (part #HT01BD242) is the factory-specified replacement for the \u003cstrong\u003eCarrier PH2PNB048000AB\u003c\/strong\u003e packaged heat pump unit. The control transformer steps high-voltage line power (208\/240\/480V) down to the 24VAC signal voltage that powers every low-voltage control circuit in your system — the thermostat, contactor coils, control board, and safety switches. When this transformer fails, the entire unit goes dark: no thermostat response, no contactor pull-in, and no error codes, since the board itself has no power to report a fault.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Input 208\/240\/480VAC | Output 24VAC | Power Rating: 75VA | 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 the genuine Carrier OEM transformer, wound and potted to exact factory specifications. Generic equivalents often use thinner winding wire and lower-grade core laminations, leading to thermal overload and premature burnout under continuous HVAC duty cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect all power and verify zero voltage with a multimeter before starting. Tools needed: flathead and Phillips screwdrivers, ¼\" nut driver, needle-nose pliers, multimeter. Photograph all wire connections before removing the old unit. Secure the foot-mount bracket firmly before reconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. In-stock units ship same business day from our warehouse when ordered by cutoff time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Factory-matched replacement for the Carrier \u003cstrong\u003ePH2PNB048000AB\u003c\/strong\u003e packaged heat pump. Also fits a broad range of Carrier, Bryant, and Payne AC, furnace, and RTU applications requiring a 75VA 208\/240\/480V primary to 24V secondary foot-mount transformer. Always verify your unit's data plate voltage and VA rating before ordering. Our fitment specialists are available to confirm compatibility — contact us before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641453138291,"sku":"CARRIE-PH2PNB048000AB-TRANSFORMER-HT01BD242","price":103.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641453171059,"sku":"CARRIE-PH2PNB048000AB-TRANSFORMER-HT01BD242-GEN","price":91.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01BD242_1e0939e6-2bfe-4d2f-86a8-ce8d9aa03e0b.jpg?v=1775026228","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph2pnb048000ab-transformer-h3025m","provider":"National HVAC Parts","version":"1.0","type":"link"}