E13
Classeq
Control PCB / Communication Fault
E13 displayed; machine may not start or may reset unexpectedly, often after power disturbances.
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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
Faulty main control PCB, Loose control board connectors, Voltage spikes or unstable supply, Internal firmware error
How to Fix / Troubleshooting
Safety first: Turn off the mains isolator before opening the control compartment.
- Power reset: Switch off the machine at the isolator for at least 5 minutes to allow capacitors to discharge. Restore power and see if E13 clears.
- Inspect control PCB connections: Remove the control cover and check all plug‑in connectors to the main PCB. Reseat each connector to ensure good contact.
- Check supply voltage: Verify that the supply matches the Classeq rating plate (e.g., 230 V single‑phase or 400 V three‑phase). Large deviations or missing phases can cause control errors.
- Look for PCB damage: Examine the board for burnt components, cracked solder joints, or moisture ingress. If present, the PCB should be replaced.
- Professional service: Firmware or communication issues generally require a Classeq‑authorised technician to diagnose and replace the control board.
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Repair Difficulty
Professional Required
5/5
Required Part
Main Control PCB
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