What does the AEG E90 error code mean?
The AEG E90 error code indicates a communication fault between the washing machine’s internal electronic components. This typically means the main control board is unable to properly communicate with other modules.
In most cases, this points to a fault with the control board (PCB), wiring issues, or a temporary software glitch.
Common causes of the E90 error
- Faulty main control board (PCB)
- Loose or damaged internal wiring
- Power surge or electrical interruption
- Software/communication glitch
How to fix the AEG E90 error code
- Unplug the washing machine — Leave it disconnected from power for at least 20 minutes to allow a full reset.
- Restore power and test — Sometimes the error clears if it was a temporary fault.
- Check internal wiring — Inspect connections between the control board and other components.
- Look for visible damage — Burn marks or loose connectors can indicate failure.
- Replace the control board — If the error persists, the PCB is likely faulty and will need replacing.
Frequently Asked Questions
Can I reset an E90 error?
Yes, sometimes a full power reset will clear the fault, but if the issue is hardware-related, the error will usually return.
Is it worth repairing?
It depends on the age of the machine and the cost of the control board. On older machines, replacement may be more economical.
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