{"product_id":"carrier-ph2pjb048000aa-transformer-h3025m","title":"OEM Carrier Transformer 75VA 208\/240\/480V–24V for PH2PJB048000AA","description":"\u003ch1\u003eOEM Carrier Transformer 75VA 208\/240\/480V to 24V for Model PH2PJB048000AA\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier transformer (part #HT01BD242) is the factory-specified control-circuit transformer for the \u003cstrong\u003eCarrier PH2PJB048000AA\u003c\/strong\u003e packaged heat pump unit. The transformer steps down high-voltage line power (208\/240\/480V primary) to the 24V AC signal that energizes your thermostat, contactor coil, control board, and all low-voltage safety circuits. When it fails, the entire control circuit goes dead — the thermostat goes blank, the system refuses to start, and no low-voltage components respond. Replacing a failed transformer is one of the most straightforward repairs you can make to restore full system function.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 75VA rating | 208\/240\/480V primary | 24VAC secondary | 50\/60 Hz | 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 aftermarket transformers often run under-rated VA, causing premature thermal cutout trips and nuisance lockouts under full control-circuit load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power at the disconnect and breaker before touching any wiring. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (to verify 24VAC output after install). Always photograph or label all low-voltage wiring before disconnecting. The foot-mount bracket makes secure panel mounting straightforward.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory 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 Factory-matched replacement for the \u003cstrong\u003eCarrier PH2PJB048000AA\u003c\/strong\u003e packaged heat pump unit. This transformer is also used across a broad range of Carrier, Bryant, Payne, Tempstar, and Heil HVAC equipment — always verify your unit's data plate voltage and VA requirements before ordering. Our fitment team is available to confirm compatibility before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641461330291,"sku":"CARRIE-PH2PJB048000AA-TRANSFORMER-HT01BD242","price":70.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641461363059,"sku":"CARRIE-PH2PJB048000AA-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_7b8efed8-2364-4af4-8bc1-c1a636ead113.jpg?v=1782943245","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph2pjb048000aa-transformer-h3025m","provider":"National HVAC Parts","version":"1.0","type":"link"}