E18
Classeq
User Interface / Display Communication Fault
Classeq dishwasher shows E18; internal communication error between user interface and main control board.
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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 display ribbon cable, Faulty user interface PCB, Faulty main control PCB, Moisture ingress in control panel
How to Fix / Troubleshooting
Safety first: Isolate the appliance from the mains before opening the control panel.
- Inspect display connections: Remove the front control panel and check the ribbon cable or harness between the display board and main PCB. Reseat connectors.
- Check for moisture: Look for signs of condensation or water ingress around the display. Dry thoroughly and address any door seal or panel leaks.
- Visual PCB inspection: Examine both the user interface PCB and main PCB for burnt components or corrosion. Replace the affected board if damage is found.
- Test operation: Reassemble and restore power. If E18 persists, a matched set of control and display boards may be required from Classeq.
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Repair Difficulty
Hard
4/5
Required Part
User Interface PCB
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