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HomeRepair HelpLG Dishwasher RepairLG Dishwasher starts on its own Repair
LG Dishwasher starts on its own
If your LG dishwasher starts on its own, the problem is usually in the controls, not the pump or wash system. The most likely cause is a shorted touchpad and control panel, followed by a failed touchpad by itself, then a bad control panel with a shorted relay, and finally a faulty user control and display board. This kind of dishwasher turns on by itself issue often shows up along with dishwasher buttons not working, a dishwasher control panel not working, or a dishwasher touchpad not responding when you press certain keys. A quick check is to press each button and see if any do nothing or respond inconsistently. If some buttons fail, the touchpad, control panel, or the combined touchpad and control panel assembly is the likely fix. If the buttons seem normal but the unit still starts without pressing start, the user control and display board may be sending the wrong signal. Enter your model number on RepairClinic.com to find the exact LG replacement part that fits your specific dishwasher.
01 - LG Dishwasher Touchpad and Control Panel
If the dishwasher is starting on its own, part of the touchpad may have shorted. To determine if the touchpad is at fault, try pressing various buttons on the touchpad. If some of the buttons don’t respond, the touchpad might be defective. (Some manufacturers sell the touchpad separately from the control panel. Other manufacturers require that you purchase the touchpad and control panel together. If you cannot replace the touchpad individually, replace the touchpad and control panel.)
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02 - LG Dishwasher Touchpad
If the dishwasher is starting on its own, part of the touchpad may have shorted. To determine if the touchpad is at fault, try pressing various buttons on the touchpad. If some of the buttons don’t respond, the touchpad might be defective. (Some manufacturers sell the touchpad separately from the control panel. Other manufacturers require that you purchase the touchpad and control panel together. If you cannot replace the touchpad individually, replace the touchpad and control panel.)
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03 - LG Dishwasher Control Panel
If the dishwasher is starting on its own, a relay in the control panel may have shorted. Try pressing various buttons on the control panel touchpad. If some of the buttons don’t respond, the control panel is likely defective. (Some manufacturers sell the touchpad separately from the control panel. Other manufacturers require that you purchase the touchpad and control panel together. If you cannot replace the touchpad individually, replace the touchpad and control panel.)
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04 - LG Dishwasher User Control and Display Board
A dishwasher's user control and display board allows the user to select a wash and drying cycle and start the appliance. If the dishwasher is starting on its own, it's possible the board has shorted and will need to be replaced with a new one.
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Frequently Asked Questions
Why does my LG dishwasher start on its own?
How do I tell if the dishwasher touchpad is bad or if the control board is the problem?
My LG dishwasher touchpad is not responding. Can that make it start by itself?
Can I test a dishwasher control panel or user control board with a multimeter?
How do I find the right LG dishwasher control panel or touchpad part?
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