Quick summary
Start simple: socket and breaker, then the power button and child lock (CL), then the door. If the display stays completely dark on a working socket, the fault is usually internal power or the control board and needs a technician.
When an LG washer doesn't respond at all, or the display lights up but the program won't begin, the cause can be as simple as a control lock or a door that isn't latched—or as serious as a power-supply or PCB fault. This guide orders the possibilities from easiest to hardest.
Unplug the appliance, close the water tap if there's a leak, and never open covers that need tools or expose wiring or circuits.
Possible causes
No power reaching the machine
A dead socket, a tripped breaker or a weak extension lead. Sharing a socket with other high-load appliances can also cut power.
Control lock / child lock is on
With child lock active, CL or a lock icon appears and buttons don't respond. It's a feature, not a fault; it's usually released by holding the lock button described in your manual.
Door not closed or not locking
The washer won't start unless the door switch confirms closure. Trapped clothing or a damaged latch prevents starting and may show dE.
Power cut during a previous cycle
Many models show PF after a power interruption; you may need to reselect the program and press Start.
Control board or internal supply fault
If the socket is fine but the display never lights, the board or its connections may be at fault—this needs measurement by a technician.
Safe checks you can do
- Test the socket with a small appliance and make sure the washer's breaker is on.
- Plug the washer directly into the wall—no extension lead or power strip.
- Unplug for a full minute, plug back in and press the power button.
- Look for CL or a lock icon and release it as described in your manual.
- Open the door, remove any clothing caught in the gasket and close it firmly until it clicks.
- Select the program first, then press Start/Pause.
When to stop checking immediately
- If you smell burning, see sparks or heat marks on the plug—unplug immediately and don't restart.
- If the plug or cable is damaged or hot.
Related components
- Control panel
- Main PCB
- Door & lock
When do you need a technician?
If the display stays dark on a working socket, or buttons don't respond after releasing the lock, diagnosis requires measuring the supply, connectors and board. An LG-Elite technician traces power from the plug to the board and explains the cause before replacing anything.
Related error codes
FAQ
Can child lock make my LG washer seem dead?
Yes. If CL or a lock icon is shown, the buttons are intentionally locked. The release method varies by model—usually holding a specific button for a few seconds.
The display lights but the cycle won't start—why?
Usually the door isn't latching or Start was pressed before choosing a program. If a code like dE appears, see the error code guide.
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