{"product_id":"carrier-pg8maa036110adja-transformer-h2usbz","title":"OEM Carrier 24V Furnace Control 40VA Transformer for PG8MAA036110ADJA","description":"\u003cdiv class=\"product-content\"\u003e\n\u003ch1\u003eOEM Carrier 24V Furnace Control Transformer for PG8MAA036110ADJA\u003c\/h1\u003e\n\u003cp\u003eThe control transformer steps your home's 120V line voltage down to the 24V control voltage that powers your Carrier PG8MAA036110ADJA furnace's thermostat, control board, gas valve, and relays. It is the heart of the low-voltage control circuit. When it fails, the entire system goes dead from the thermostat's perspective — a blank thermostat, no response to a heat or cool call, and no clicking from the gas valve or contactor, even though the furnace still has line power. A shorted control wire or a stuck component can also overload and burn out the transformer.\n\nThis is a 40 VA, 120V primary \/ 24V secondary control transformer, the standard sizing for residential gas furnaces. Verify it with a multimeter: roughly 120V across the primary and 24–28V across the secondary with power on. No secondary output means a failed winding or a tripped internal fuse-link.\n\nOEM matters because under-rated generic transformers often supply less than the full 40 VA, sagging under load when the gas valve and inducer pull current simultaneously. That voltage drop causes intermittent control faults that are maddening to diagnose and shortens the life of every component on the 24V bus.\n\nInstall difficulty: 2 of 5. Tools: 1\/4\" nut driver, multimeter, wire nuts or spade connectors. SAFETY: kill power at the breaker before wiring — the primary side carries lethal 120V. Confirm the secondary is isolated before reconnecting the control wires.\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 PG8MAA036110ADJA. 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":62643052151155,"sku":"CARRIE-PG8MAA036110ADJA-TRANSFORMER-HT01BC116","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62643052183923,"sku":"CARRIE-PG8MAA036110ADJA-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_4461f481-490b-4fd5-8dae-2ff6f79169e0.jpg?v=1782898237","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pg8maa036110adja-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}