{"product_id":"carrier-py4gpaa36060aa-transformer-h30291","title":"OEM Carrier 24V Control 40VA Transformer for PY4GPAA36060AA Furnace","description":"\u003cdiv class=\"product-content\"\u003e\n\u003ch1\u003eOEM Carrier 24V Control Transformer for PY4GPAA36060AA Furnace\u003c\/h1\u003e\n\u003cp\u003eThe 24V control transformer is the power backbone of your Carrier PY4GPAA36060AA, stepping incoming 120V line voltage down to the low-voltage 24V that energizes the thermostat, gas valve, draft inducer relay, and main control board. When this transformer fails you get classic \"totally dead\" symptoms — a blank or unresponsive thermostat, no blower, no ignition, and a furnace that won't react to a call for heat even though the high-voltage breaker is on. A transformer that has shorted internally frequently blows the board's low-voltage fuse the moment power is restored, and a slow burnout can leave a faint scorched-electrical odor around the control box.\n\nThis OEM unit is built to Carrier's 120V primary \/ 24V secondary specification at 40VA — the VA class this furnace needs to carry the inducer, igniter circuit, and gas valve simultaneously. Factory turns ratios hold the secondary at a true 24-28V under load, and the laminated steel core is sized for continuous duty without thermal sag.\n\nTransformers look interchangeable, but VA rating and winding quality matter. A cheap aftermarket transformer with a lower VA rating or thinner secondary windings sags under load, browns out the gas valve mid-cycle, and runs hot enough to cook its own insulation — shortening its life and causing intermittent no-heat faults that are maddening to diagnose. The OEM part holds voltage and stays cool.\n\nInstall difficulty: 2 of 5. Tools: 1\/4\" nut driver, a multimeter to confirm 120V in and 24V out, and needle-nose pliers for the spade terminals. #1 safety rule: shut off the furnace at the breaker AND the unit disconnect before touching the transformer — the primary side carries live 120V line voltage that can injure or kill.\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 PY4GPAA36060AA. 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":62640316186995,"sku":"CARRIE-PY4GPAA36060AA-TRANSFORMER-HT01BD209","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640316219763,"sku":"CARRIE-PY4GPAA36060AA-TRANSFORMER-HT01BD209-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-HT01BD209_b3104969-1aaa-49f6-9855-23fe3730c74f.jpg?v=1782898106","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py4gpaa36060aa-transformer-h30291","provider":"National HVAC Parts","version":"1.0","type":"link"}