E15
RCA
Control Board Communication Error
Washer-dryer combo shows E15 and will not start; often associated with communication issues between control boards (if present).
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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 user interface and main PCB, Faulty user interface board, Defective main control board, Power surge damage
How to Fix / Troubleshooting
Safety first: Unplug the unit before removing the control panel or top cover.
- Power reset: Leave the unit unplugged for 5–10 minutes to allow capacitors to discharge, then plug back in and try again. This can clear transient faults.
- Inspect control connections: Remove the top panel and control console. Check the ribbon cable and harness connectors between the display/control panel and the main control board. Reseat all connectors firmly.
- Look for damage: Inspect both boards for burn marks, corrosion, or moisture intrusion.
- Surge protection: If E15 appeared after a power outage or surge, consider using a surge protector once repairs are complete.
- When to replace parts: If reseating cables does not resolve E15, the user interface board or main control board may need replacement. This is typically a technician-level repair.
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Repair Difficulty
Professional Required
5/5
Required Part
Main Control Board
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