LG dishwasher will not start or controls are unresponsive
LG’s current dishwasher guidance checks household power, Control Lock, and an in-progress cancel/drain sequence before recommending inspection.
What this guide covers
Symptoms: Won’t start / controls unresponsive
This guide follows a structured decision tree built from manufacturer troubleshooting information. It does not assume that the most commonly replaced part is the failed part, and it does not show an exact-fit replacement part unless model compatibility has been independently verified.
Continue this exact diagnostic
Safe troubleshooting sequence
Start with the observations and external checks that can be verified without opening energized assemblies. The interactive version asks these in order and changes the path based on your answers.
- Check whether the dishwasher has powerLG first separates a completely unresponsive dishwasher from a control-setting issue.
- Check the visible household power pathA tripped breaker or loose accessible plug can leave the dishwasher unresponsive.
- Check Control Lock / Child LockLG says CL on the display means the controls are locked.
- Look for a cancel/drain sequenceLG says dashes after Start can mean the dishwasher is draining as part of a cycle cancellation.
What the answers can lead to
Restore normal power before retesting the dishwasher
LG directs owners to confirm the breaker and power connection when the Power button is unresponsive.
Evidence strength: Strong
Turn off Control Lock using the model’s marked button combination
Control Lock intentionally disables cycle and option buttons.
Evidence strength: Strong
Let the cancellation and drain sequence finish
Holding Start can cancel a running cycle and make the dishwasher drain before shutting off.
Evidence strength: Strong
The dishwasher still will not start after the documented control checks
LG says a powered dishwasher whose panel remains unresponsive may require inspection.
Evidence strength: Strong
When professional diagnosis is the safer next step
LG says a powered dishwasher whose panel remains unresponsive may require inspection.
Appliance Verdict stops before energized electrical testing, gas-system work, sealed-system work, and other checks that can create unnecessary risk. A technician can use the model, issue, and completed checks from the interactive diagnostic as a starting point.
Repair or replace?
A diagnosis and a repair decision are different questions. Once you have a real repair quote, compare the total repair cost with the all-in price of a comparable replacement. Warranty or protection-plan coverage, appliance age, reliability history, efficiency, and likely future repairs can all matter. Appliance Verdict’s interactive result includes a transparent cost comparison rather than a black-box replacement recommendation.
Manufacturer sources
Dataset reviewed through 2026-09-11. Appliance Verdict is independent and is not endorsed by the manufacturers cited. Always follow the exact owner or service documentation for your model.
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