E8
Chefman Control Board Communication / EEPROM Error

E8 error appears and the display or controls behave erratically.

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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

Corrupted control firmware, Loose ribbon cable between display and main PCB, Power surge damage, Failed EEPROM or microcontroller on PCB

How to Fix / Troubleshooting

Safety first: Disconnect power before opening the control panel.

  • Power cycle: Unplug the fryer for at least 15 minutes to allow capacitors to discharge. Plug back in and test. If E8 returns, continue.
  • Inspect control connections: Remove the front/control panel. Check the ribbon cable and connectors between the display board and main control PCB. Reseat all connectors firmly.
  • Look for damage: Examine the control board for burn marks, swollen capacitors, or corrosion. Any visible damage usually means the board must be replaced.
  • Surge protection: If the error followed a power outage or surge, consider using a surge protector after repair to prevent recurrence.
  • Replace control board: If reseating cables does not resolve the issue, replace the main control PCB assembly. Firmware on these boards is not typically field-reprogrammable.
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Repair Difficulty

Hard 4/5

Required Part

Main Control PCB
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