{"product_id":"carrier-ph1peb036000aaaa-transformer-h3025m","title":"OEM Carrier Control Transformer 75VA 208\/240\/480V for PH1PEB036000AAAA","description":"\u003ch1\u003eOEM Carrier Control Transformer 75VA 208\/240\/480V → 24V for Model PH1PEB036000AAAA\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier control transformer (part #HT01BD242) is the factory-specified replacement for the \u003cstrong\u003eCarrier PH1PEB036000AAAA\u003c\/strong\u003e packaged heat pump unit. The transformer steps down high-voltage line power to the 24VAC signal voltage that energizes every control circuit in your system — thermostats, contactors, reversing valves, safety switches, and the control board itself. When this transformer fails, the result is total loss of control-circuit power: the thermostat goes blank, nothing responds, and the unit will not start at all. A shorted transformer may also blow the low-voltage fuse on the control board, so always inspect and replace that fuse alongside this part.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 75VA power rating | Primary input: 208\/240\/480V, 50\/60Hz | Secondary output: 24VAC | Foot-mount configuration | OEM part #HT01BD242\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e The OEM HT01BD242 is wound to exact factory VA and voltage tolerances. Undersized or off-tolerance generic transformers can sag output voltage under load, causing nuisance lockouts, erratic board behavior, and premature contactor failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Shut off all power at the disconnect and breaker before proceeding. Tools needed: multimeter (verify 0VAC before touching), screwdrivers (flathead and Phillips), needle-nose pliers, wire nuts or spade connectors. Always photograph existing wiring before removal. Check and replace the 5A low-voltage fuse on the control board if blown.\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.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as the direct OEM replacement transformer for the \u003cstrong\u003eCarrier PH1PEB036000AAAA\u003c\/strong\u003e packaged heat pump. Also cross-references to Bryant, Payne, and ICP-family units sharing the HT01BD242 specification. Verify primary voltage (208\/240V or 480V) matches your unit's supply voltage before ordering. Our team is available to verify fitment — contact us before you buy if you have any doubts.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641659740531,"sku":"CARRIE-PH1PEB036000AAAA-TRANSFORMER-HT01BD242","price":103.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641659773299,"sku":"CARRIE-PH1PEB036000AAAA-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_2910911a-3408-4296-9d3a-73b387e45ab4.jpg?v=1775026226","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph1peb036000aaaa-transformer-h3025m","provider":"National HVAC Parts","version":"1.0","type":"link"}