E14
Proline Main Control Board / User Interface Communication Fault

Washer-dryer will not start; E14 displayed, often associated with control or 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 harness between display board and main PCB, Faulty user interface (UI) board, Failed main control board, Power surge damage

How to Fix / Troubleshooting

Safety first: Unplug the appliance before removing the control panel or top cover.

Step-by-step checks:

  • Power reset: Disconnect power for 5–10 minutes, then reconnect to see if the error clears.
  • Check connectors: Remove the top cover and control panel to access the UI and main PCB. Reseat all ribbon cables and harness connectors between the boards.
  • Inspect for damage: Look for burnt components, corrosion, or moisture on the boards. If present, the affected board will likely need replacement.
  • Test buttons and knob: Ensure the program selector and buttons operate correctly and are not stuck, which can confuse the UI.

When to call a technician: Board-level diagnostics and replacement are best handled by a qualified technician, especially if firmware programming is required.

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Repair Difficulty

Professional Required 5/5

Required Part

Main Control Board (PCB)
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