LG
Start Circuit / Motor Relay Failure
Dryer will not start at all; display is on and buttons respond, but pressing Start does nothing.
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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
Faulty Start button or UI board, Open door switch, Failed motor relay on main PCB, Open thermal fuse
How to Fix / Troubleshooting
Safety first: Unplug dryer.
Steps:
- Confirm door closure: Ensure door is fully closed and door switch clicks.
- Check Child Lock: Make sure CL is not displayed; disable if it is.
- Test thermal fuse: Access rear panel and test thermal fuse for continuity; replace if open and clean venting.
- Listen for relay click: When pressing Start (with panels in place), listen for a click from the control board. If none, the Start circuit or relay may be faulty and the board may need replacement.
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Repair Difficulty
Medium
3/5
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