{"product_id":"carrier-pg8maa036045aaja-transformer-h2usbz","title":"OEM Carrier 24V Control Transformer for Furnace PG8MAA036045AAJA","description":"\u003cdiv class=\"product-content\"\u003e\n\u003ch1\u003eOEM Carrier 24V Control Transformer for Furnace PG8MAA036045AAJA\u003c\/h1\u003e\n\u003cp\u003eThe control transformer in your Carrier PG8MAA036045AAJA gas furnace steps incoming 120-volt line power down to the 24-volt low-voltage circuit that runs everything you actually control: the thermostat, the gas valve, the hot surface igniter sequence, and the blower and inducer relays. When this transformer fails, the entire low-voltage side goes dark. Homeowners typically notice a blank thermostat, a furnace that won't respond to a heat call, and no ignition, no blower, and no cooling — even though the unit still has line power at the disconnect. A transformer that has shorted internally will often blow the furnace's 3-amp control fuse the instant power is restored, or give off a faint hot-electronics smell.\n\nThis is a 40 VA, Class II transformer with a 120V primary and a 24V secondary — the standard configuration for Carrier and Bryant residential gas furnaces. OEM units are built to hold a true 24V output under the combined inrush of the gas valve and igniter energizing at the same time, and include integral thermal or fuse protection.\n\nWhy OEM matters here: generic transformers frequently use lighter-gauge windings and undersized cores that sag well below 24V under full load. That voltage droop causes intermittent, hard-to-diagnose no-heat faults — the furnace lights some cycles and not others. An OEM-spec transformer holds rated voltage so the control board and gas valve see clean, stable power.\n\nInstall difficulty: 2 of 5. Tools: 1\/4-inch nut driver, multimeter, needle-nose pliers, and wire labels. #1 safety warning: shut off the furnace at the breaker and confirm zero voltage with your multimeter before disconnecting any leads — the primary side carries lethal 120V.\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 PG8MAA036045AAJA. 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":62643084427635,"sku":"CARRIE-PG8MAA036045AAJA-TRANSFORMER-HT01BC116","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62643084460403,"sku":"CARRIE-PG8MAA036045AAJA-TRANSFORMER-HT01BC116-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-HT01BC116_5287a60d-5cbb-426f-ae8c-53022a99caa8.jpg?v=1782898167","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pg8maa036045aaja-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}