{"product_id":"carrier-pg8daa036050acja-transformer-h2usbz","title":"OEM Carrier 40VA 24V Control Transformer for PG8DAA036050ACJA","description":"\u003cdiv class=\"product-content\"\u003e\n\u003ch1\u003eOEM Carrier 40VA 24V Control Transformer for PG8DAA036050ACJA\u003c\/h1\u003e\n\u003cp\u003eThe control transformer is the power supply for your Carrier PG8DAA036050ACJA's entire low-voltage system. It steps incoming 120V or 240V line voltage down to the 24V that runs your thermostat, gas valve, igniter circuit, and control-board relays. When the transformer's windings open or short, the unit goes completely dead — no thermostat display, no response to a call for heat or cool, no humming, nothing. A shorted transformer often trips the breaker the instant power is restored, or repeatedly blows the low-voltage fuse on the board.\n\nSpecs: This is a 40VA Class II transformer with a 24V secondary, the standard rating for Carrier\/Bryant package gas-electric units. The primary is tapped for line voltage and the secondary is fused or self-resetting to protect the control circuit. Confirm your primary voltage (120V vs 208\/240V) matches the tap before wiring.\n\nOEM vs Generic: An OEM transformer delivers the full rated 40VA continuously. Undersized aftermarket units sag under load — when the gas valve, inducer relay, and igniter energize at once, a weak transformer drops below 24V and causes intermittent no-heat faults and chattering relays that are maddening to diagnose. The correct VA rating protects the board.\n\nInstall: Difficulty 2\/5. Tools: 1\/4\" and 5\/16\" nut driver, multimeter, wire labels. SAFETY: Kill the breaker to the unit before touching any wiring — the primary side carries lethal line voltage. Label every lead before removing it; transformer wires are color-coded but easy to cross.\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 PG8DAA036050ACJA. 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":62643238437235,"sku":"CARRIE-PG8DAA036050ACJA-TRANSFORMER-HT01BC116","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62643238470003,"sku":"CARRIE-PG8DAA036050ACJA-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_695067fd-8778-4968-9505-84c4a86cd253.jpg?v=1782899466","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pg8daa036050acja-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}