{"product_id":"carrier-ph3pea036000aa-transformer-h3025m","title":"OEM Carrier 24V Control Transformer for PH3PEA036000AA Heat Pump","description":"\u003cdiv class=\"product-content\"\u003e\n\u003ch1\u003eOEM Carrier 24V Control Transformer for PH3PEA036000AA Heat Pump\u003c\/h1\u003e\n\u003cp\u003eThe control transformer steps your PH3PEA036000AA's incoming line voltage down to the 24 VAC low-voltage power that runs the thermostat, control board relays, contactor coil, and reversing valve solenoid. It is the power supply for the entire control circuit. When it fails, nothing in the low-voltage system works: a blank or dead thermostat, a system that won't respond to a call for heat or cool, a contactor that won't pull in, or — if it's intermittently shorting — a repeatedly blown low-voltage fuse on the control board. A transformer that buzzes loudly or smells burnt has usually failed from a shorted secondary.\n\nThis OEM transformer is rated for the correct primary input (commonly 208\/240 VAC) and a 24 VAC secondary with the VA rating sized to carry this model's full control load with margin. Matching both the voltage taps and the VA rating to your unit is essential.\n\nWhy OEM matters: an undersized aftermarket transformer with a lower VA rating runs hot, sags under load, and drops out the contactor or reversing valve mid-cycle, causing erratic operation that's maddening to diagnose. Wrong primary tap wiring will instantly burn it out. The OEM unit is built to the exact electrical spec and thermal margin Carrier engineered for this system.\n\nInstall difficulty: 2 of 5. Tools needed: 1\/4\" nut driver, insulated screwdriver, multimeter, and wire labels. SAFETY: kill the breaker to the outdoor unit before opening the panel — the primary side carries full line voltage. Verify zero voltage with your meter and label primary vs. secondary leads before disconnecting.\n\nShips same business day from our stocked warehouse on orders placed before 3 PM CST. Backed by a 1-year OEM warranty and 30-day hassle-free returns on uninstalled parts.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model PH3PEA036000AA. Always verify the part number against your unit's data plate before ordering.\u003c\/p\u003e\n\u003ch2\u003eWhy Choose OEM?\u003c\/h2\u003e\n\u003cp\u003eOEM parts are manufactured to the exact factory specifications for your unit. Generic aftermarket alternatives may fit physically but often use lower-rated components that reduce equipment life and void manufacturer warranties. When the cost difference between OEM and generic is $10-30, the OEM part is always the smarter investment on a system worth $5,000-$15,000.\u003c\/p\u003e\n\u003ch2\u003eShipping \u0026amp; Returns\u003c\/h2\u003e\n\u003cp\u003eSame-day shipping on orders before 3 PM CST. Standard delivery 2-5 business days, express options available at checkout. 30-day hassle-free returns on uninstalled parts — free return shipping included. 1-year OEM factory warranty coverage.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641350771059,"sku":"CARRIE-PH3PEA036000AA-TRANSFORMER-HT01BD242","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641350803827,"sku":"CARRIE-PH3PEA036000AA-TRANSFORMER-HT01BD242-GEN","price":18.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-control-HT01BD242_5fd6b909-7b6b-4ff6-8880-790e7372bab5.jpg?v=1782898201","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph3pea036000aa-transformer-h3025m","provider":"National HVAC Parts","version":"1.0","type":"link"}