i90
AEG
Main Control Board Programming Error
Dishwasher displays i90 and will not start a program.
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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
Incorrect or corrupted firmware, Failed main PCB, Power surge damage on AEG dishwasher
How to Fix / Troubleshooting
Safety first: Turn off and unplug the appliance.
- Power cycle: Leave unplugged for at least 15 minutes, then reconnect and attempt to start a short cycle.
- Check supply stability: Ensure the dishwasher is connected to a stable mains supply and not sharing a circuit with heavy-load devices causing voltage dips.
- No user-serviceable reset: i90 typically indicates a board-level issue; there is no reliable DIY reprogramming method.
- Contact AEG service: The main control board will usually need to be replaced or reprogrammed by an authorized technician.
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Repair Difficulty
Professional Required
5/5
Required Part
Main Control Board
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