Dishwasher shows i81 and may not start or may reset unexpectedly.

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.

Possible Causes

Faulty microcontroller or EEPROM, Power surge damage, Poor PCB solder joints, Moisture on control board

Safety first: Disconnect power before accessing the control module.

Power cycle: Leave the appliance disconnected for 15 minutes, then reconnect and test.
Inspect PCB: Look for burn marks, cracked solder joints, or corrosion. Light corrosion can sometimes be cleaned, but most faults require board replacement.
Surge protection: Consider using a surge protector after repair to prevent recurrence.

Professional Required 5/5

Main Control Board

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