E15
Winterhalter Communication / Bus Error

E15 error; machine reports a communication problem between control modules.

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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 data cable between main PCB and display, Damaged communication harness, Faulty display PCB, Electrical interference from supply

How to Fix / Troubleshooting

Safety first: Isolate the dishwasher from the mains.

  • Check connectors: Remove the control panel and verify that all ribbon cables and plugs between the display and main PCB are fully seated.
  • Inspect for damage: Look for pinched or cut cables where they pass through metal panels.
  • Power quality: Ensure the machine is not sharing a circuit with heavy inductive loads that cause voltage spikes.
  • Replace faulty module: If connections are sound and E15 persists, either the display PCB or main PCB may be defective and should be replaced with OEM parts.
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Repair Difficulty

Professional Required 5/5

Required Part

Display PCB
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