E30
Comfee
Control Board Communication Error
Washer displays E30 and may not start or may stop unexpectedly; often associated with internal communication issues.
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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
Loose wiring harness between main PCB and user interface, Faulty main control board, Defective display/control panel, Power surge damage
How to Fix / Troubleshooting
Safety first: Unplug the washer before removing the control panel or top cover.
- Power reset: Disconnect power for 10–15 minutes to allow capacitors to discharge, then plug back in and try again. Sometimes this clears transient communication faults.
- Inspect control connections: Remove the top panel and control console. Check the ribbon cable and harness connectors between the main PCB and the user interface board. Reseat all connectors firmly.
- Look for damage: Examine the main PCB for burn marks, swollen components, or corrosion from moisture.
- Stable power: Ensure the washer is connected to a properly grounded outlet and not sharing a circuit with heavy loads that cause voltage drops.
- Board replacement: If E30 persists after reseating connectors and there is visible board damage, the main control board or interface board may need replacement. This is typically a level-4 repair best handled by a technician.
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Repair Difficulty
Hard
4/5
Required Part
Main Control Board (PCB)
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