E9
Mealthy
Control Panel / Keypad Communication Error
E9 error appears; cooker may not respond to button presses or may freeze.
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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 ribbon cable between control panel and main board, Damaged touch panel, Faulty microcontroller on main board
How to Fix / Troubleshooting
Safety first: Unplug the cooker.
- Access control panel: Remove the outer housing screws to access the back of the front control panel.
- Check ribbon cable: Locate the flat ribbon cable or connector linking the control panel to the main board. Gently unplug and replug it to ensure a solid connection.
- Inspect for damage: Look for cracks in the control panel PCB, corrosion on connectors, or burnt spots on the main board.
- Clean connectors: If there is light oxidation, clean the contacts with isopropyl alcohol and let dry before reconnecting.
- Test operation: Reassemble and power on. If E9 persists or buttons remain unresponsive, the control panel assembly or main control board will need replacement.
Warning: Avoid bending the ribbon cable sharply; it can break internal conductors.
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Repair Difficulty
Medium
3/5
Required Part
Control Panel / Keypad Assembly
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