{"product_id":"carrier-pg9maa048060abka-transformer-h2usbz","title":"OEM Carrier 24V 40VA Transformer for PG9MAA048060ABKA Packaged Furnace","description":"\u003cdiv class=\"product-content\"\u003e\n\u003ch1\u003eOEM Carrier 24V Transformer for PG9MAA048060ABKA Packaged Furnace\u003c\/h1\u003e\n\u003cp\u003eThe control transformer steps the unit's 120V (or 208\/230V) line voltage down to the 24VAC that powers the thermostat, gas valve, relays, and the control board's low-voltage circuits. It is the heart of the control system — when a winding opens or shorts, the entire low-voltage side goes dead. Homeowners notice a blank or unresponsive thermostat, a furnace that won't answer any call for heat or cool, no inducer or igniter activity, and sometimes a blown low-voltage fuse on the board following a wiring short.\n\nThis OEM transformer is a Class 2 unit with a primary matched to the PG9MAA line voltage and a 24VAC secondary, typically rated near 40VA to comfortably carry the gas valve and accessory load. Measured across the secondary with the unit powered, a healthy transformer reads roughly 24–28 VAC; zero volts with line voltage confirmed at the primary points to a failed transformer (after ruling out a tripped board fuse).\n\nVA rating matters. A generic transformer with a lower VA rating or the wrong primary tap may show 24V unloaded but sag under the gas valve's inrush, causing dropouts, chattering relays, and intermittent no-heat faults — while running hotter and shortening its own life. The OEM unit delivers stable, full-rated 24VAC under load exactly as the control sequence expects.\n\nInstall difficulty: 2\/5. Tools: 1\/4\" nut driver, a multimeter (ACV), and labels or a photo for the wire leads. Safety: kill the breaker before servicing — line voltage is present at the primary, and the transformer holds 120\/240V even when the thermostat is off.\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 PG9MAA048060ABKA. 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":62642367136115,"sku":"CARRIE-PG9MAA048060ABKA-TRANSFORMER-HT01BC116","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62642367168883,"sku":"CARRIE-PG9MAA048060ABKA-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_bc132362-c5e6-4bd3-85b5-3daaaaf685c2.jpg?v=1782898001","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pg9maa048060abka-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}