E90
GE Profile
System Communication / Configuration Error
Washer-dryer combo shows E90 and will not start; may indicate a general communication or configuration fault.
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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
Mismatch between control boards, Corrupted configuration data, Loose harness between boards, Incorrect replacement board installed
How to Fix / Troubleshooting
Safety first: Unplug the appliance before working on internal electronics.
- Verify model and board compatibility: If a control board was recently replaced, confirm that the correct GE Profile part number was installed for your exact model.
- Inspect inter-board harness: Check the wiring harness between the main control and any auxiliary boards (e.g., motor control, UI). Reseat all connectors.
- Perform configuration procedure: Some GE Profile combos require a configuration or personality setting after board replacement. Follow the service manual to enter service mode and set the correct configuration code.
- Power cycle: After configuration, unplug the unit for 1–2 minutes, then restore power and test.
- Replace incompatible or faulty board: If E90 persists and configuration is correct, the installed board may be defective or incompatible and should be replaced with the proper main control board or UI board.
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Repair Difficulty
Professional Required
5/5
Required Part
Main Control Board
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