E8
Kenwood
Control Board Fault / Internal Self-Test Failure
E8 error appears when trying to start any program; no heating occurs.
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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, Failed relay driver, Internal microcontroller error, Power supply fault on PCB
How to Fix / Troubleshooting
Safety first: Disconnect from mains before any disassembly.
- Power cycle: Unplug for 10 minutes to discharge internal capacitors, then reconnect and test. If E8 appears immediately, suspect the control board.
- Check for visible damage: Remove the bottom cover and inspect the control PCB for burnt components, bulging capacitors, or corrosion.
- Verify mains voltage: Ensure the outlet supplies correct voltage and is not fluctuating (use another appliance to confirm).
There is no reliable user-level repair for an internal PCB fault. The main control board typically must be replaced as a complete module.
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Repair Difficulty
Professional Required
5/5
Required Part
Main Control PCB
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