{"product_id":"carrier-ph1ppb036000aaaa-transformer-h3025m","title":"OEM Carrier Transformer 75VA 208\/240\/480V–24V for PH1PPB036000AAAA","description":"\u003ch1\u003eOEM Carrier Control Transformer 75VA 208\/240\/480V to 24VAC — Model PH1PPB036000AAAA\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier transformer (part #HT01BD242) is the factory-specified replacement for the \u003cstrong\u003eCarrier PH1PPB036000AAAA\u003c\/strong\u003e packaged heat pump unit. The transformer steps down high-voltage line power (208\/240\/480V) to the 24VAC low-voltage signal that powers your thermostat, contactor coils, and control board. When this part fails, the entire control circuit loses power — the result is a completely unresponsive system: no thermostat display, no contactor pull-in, and no heating or cooling operation whatsoever.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 75VA power rating | 208\/240\/480V primary input | 24VAC secondary output | 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 engineered to exact factory tolerances. Generic transformers often use lower-grade core materials and thinner wire windings, leading to voltage sag under load and premature thermal failure — both of which can damage downstream control boards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Line-voltage terminals are present; always shut off power at the disconnect and verify with a multimeter before touching any wiring. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, wire stripper, multimeter. Label all wires before disconnecting. Foot-mount design requires securing to the equipment panel before reconnecting leads.\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 Directly replaces the factory-installed transformer in Carrier model \u003cstrong\u003ePH1PPB036000AAAA\u003c\/strong\u003e packaged heat pump units. This transformer is also used across multiple Carrier, Bryant, and ICP-family packaged and split-system platforms — always verify your unit's data plate input voltage matches the 208\/240\/480V primary before ordering. Our HVAC parts specialists are available to confirm fitment before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641562550643,"sku":"CARRIE-PH1PPB036000AAAA-TRANSFORMER-HT01BD242","price":70.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641562583411,"sku":"CARRIE-PH1PPB036000AAAA-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_82d9a24b-d892-4a0a-8d12-b50c330c3b9b.jpg?v=1782943227","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph1ppb036000aaaa-transformer-h3025m","provider":"National HVAC Parts","version":"1.0","type":"link"}