{"product_id":"carrier-ph2pnb036000aa-transformer-h3025m","title":"OEM Carrier Transformer 75VA 208\/240\/480V-24V for PH2PNB036000AA","description":"\u003ch1\u003eOEM Carrier Control Transformer 75VA 208\/240\/480V → 24VAC for Model PH2PNB036000AA\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier transformer (part #HT01BD242) is the factory-specified replacement for the \u003cstrong\u003eCarrier PH2PNB036000AA\u003c\/strong\u003e heat pump. The transformer steps down high-voltage power — 208, 240, or 480V primary — to the 24VAC signal that energizes the entire low-voltage control circuit: thermostat, contactor coil, reversing valve, and safety controls. When this transformer fails, \u003cem\u003enothing works\u003c\/em\u003e — the system will not respond to any thermostat calls for heating or cooling, and fuses or breakers in the low-voltage circuit may trip repeatedly.\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 design | Factory-matched to Carrier PH2PNB036000AA specifications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers maintain tight VA and voltage tolerances, protecting sensitive controls downstream. Generic units can run under-rated VA, causing thermal overload and premature failure — especially under high-demand multi-stage systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Requires disconnecting line voltage. Always shut off power at the breaker and verify zero voltage with a multimeter before proceeding. Label all low-voltage wiring before removal. Tools needed: screwdrivers (flathead and Phillips), wire stripper, needle-nose pliers, multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In stock — ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the Carrier \u003cstrong\u003ePH2PNB036000AA\u003c\/strong\u003e heat pump. The HT01BD242 is also used across Carrier, Bryant, Payne, and ICP family equipment with matching 208\/240\/480V → 24VAC 75VA transformer specifications — always verify your unit's data plate voltage and VA rating before ordering. Questions about fitment? Our HVAC parts specialists verify compatibility before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641457168755,"sku":"CARRIE-PH2PNB036000AA-TRANSFORMER-HT01BD242","price":70.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641457201523,"sku":"CARRIE-PH2PNB036000AA-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_791b1c10-3ac9-4ef9-a193-e210412d06f6.jpg?v=1782943207","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph2pnb036000aa-transformer-h3025m","provider":"National HVAC Parts","version":"1.0","type":"link"}