E08
Bosch Control Panel / Keypad Communication Fault

Microwave displays E08 and may not accept certain cooking modes or power levels.

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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 keypad and control board, Damaged touch control panel, Control board keypad interface failure, Moisture ingress behind control panel

How to Fix / Troubleshooting

Safety: Unplug the microwave before cleaning the control panel.

  • Clean and dry the keypad: Wipe the touch panel with a slightly damp, non-abrasive cloth and mild detergent. Immediately dry with a soft cloth. Do not spray cleaner directly onto the panel.
  • Allow to dry: If the panel was exposed to steam or liquid spills, leave the door open and allow the unit to air dry for several hours.
  • Power reset: After drying, plug the microwave back in and test all buttons. Check if E08 reappears when pressing specific keys.

If certain keys do not respond or E08 persists: The touch control panel or its ribbon cable may be damaged, or the main PCB interface has failed. These parts are behind the fascia and require disassembly; contact Bosch service.

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Repair Difficulty

Medium 3/5

Required Part

Touch Control Panel
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