E14
LG
Mode Switch / Button Circuit Fault
Vacuum displays E14; unit will not switch between Normal and Turbo modes.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Stuck or worn mode button, Faulty button PCB, Damaged ribbon cable between button board and main PCB, Contamination under button cap
How to Fix / Troubleshooting
Safety first: Remove the battery before attempting to clean around buttons.
- 1. Check button travel: Press the mode button repeatedly with the unit off. It should click and return smoothly. If it feels stuck, gently clean around the button with a dry cloth.
- 2. Power reset: Remove the battery for 60 seconds, then reinstall and test the mode button again.
- 3. Avoid liquids: Do not spray cleaners directly on the button; moisture can damage the PCB.
- 4. If the button physically moves but the mode never changes, the internal button PCB or cable is likely faulty. This requires disassembly of the handle and should be done by a technician.
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Repair Difficulty
Hard
4/5
Required Part
Control Button PCB
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