E15
Montpellier
Communication Error Between Control Modules
Washer-dryer displays E15 and may not start; often associated with communication issues between control boards (if multiple PCBs are used).
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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 display PCB and main PCB, Faulty user interface board, Faulty main control board, Electrical noise or surge damage
How to Fix / Troubleshooting
Safety first: Unplug the appliance before removing the control panel or top cover.
Step-by-step checks:
- 1. Power reset: Disconnect power for at least 10 minutes to allow capacitors to discharge. Reconnect and test. Sometimes E15 is cleared by a full reset.
- 2. Inspect control panel connections: Remove the control panel fascia and check the ribbon cable or harness between the user interface and main PCB. Reseat connectors firmly.
- 3. Check for moisture: Look for signs of condensation or water ingress around the control panel. Dry thoroughly and address any leak sources (e.g., door seal, dispenser).
- 4. Visual PCB inspection: Examine both the display PCB and main PCB for burn marks, corrosion, or cracked solder joints. Replace any obviously damaged board.
- 5. Professional diagnosis: If wiring and connectors are sound but E15 persists, a technician may need to substitute known-good boards to identify the faulty module.
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Repair Difficulty
Professional Required
5/5
Required Part
User Interface Control Board
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