{"product_id":"carrier-ph13pr04800gajaa-transformer-h4oyjb","title":"OEM Carrier 40VA Control Transformer 24V for PH13PR04800GAJAA","description":"\u003cdiv class=\"product-content\"\u003e\n\u003ch1\u003eOEM Carrier 40VA Control Transformer 24V for PH13PR04800GAJAA\u003c\/h1\u003e\n\u003cp\u003eThe control transformer steps your Carrier PH13PR04800GAJAA's 230VAC line voltage down to the 24VAC that powers the thermostat, control board, contactor coil, and reversing-valve solenoid. It is the power supply for the entire low-voltage control circuit. When the transformer fails the whole control side goes dead: a blank thermostat, an outdoor unit that never energizes, no response to a call for heat or cool, and a unit that has line voltage but does nothing. A transformer killed by a shorted thermostat wire or a stuck contactor coil will often hum, run hot, smell burnt, or visibly bulge before it opens completely.\n\nThis is a Class II control transformer with a 208\/230VAC primary and a 24VAC secondary, commonly rated 40VA for this packaged platform, and many are internally fused or paired with a low-voltage circuit breaker. Confirm the primary voltage, secondary voltage, and VA rating against your old transformer before ordering, and find the short that took out the original — a new transformer will fail again in seconds if the underlying fault remains.\n\nWhy OEM matters here: the genuine Carrier transformer supplies clean, correctly-rated 24VAC and is built with windings sized to handle the inrush of the contactor and reversing-valve coils. Undersized aftermarket transformers sag under load, chatter the contactor, and burn out early, leaving you with repeat no-power failures.\n\nInstall difficulty: 2 of 5. Tools needed: a 1\/4-inch and 5\/16-inch nut driver, a Phillips screwdriver, and a multimeter to confirm 24VAC output and check for shorts. #1 safety warning: TURN OFF THE BREAKER before touching the transformer — the primary side carries full 230V line voltage.\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 PH13PR04800GAJAA. 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":62641837769075,"sku":"CARRIE-PH13PR04800GAJAA-TRANSFORMER-HT01AW229","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641837801843,"sku":"CARRIE-PH13PR04800GAJAA-TRANSFORMER-HT01AW229-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-HT01AW229_3bd4679e-59a7-4bcd-b288-bb1b8d24d879.jpg?v=1782899515","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph13pr04800gajaa-transformer-h4oyjb","provider":"National HVAC Parts","version":"1.0","type":"link"}