E90
Midea
Communication Failure
Washer shows E90; communication error between main control board and user interface or inverter.
Advertisements
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.
Advertisements
Possible Causes
Loose harness between boards, Faulty main PCB, Faulty display/UI board, Electrical noise or surge damage
How to Fix / Troubleshooting
Safety first: Unplug the washer before accessing control panels.
- Power reset: Leave the washer unplugged for 5–10 minutes, then reconnect and try again. Sometimes transient faults clear.
- Check connectors: Remove the top panel and inspect the wiring harness between the main PCB and the display/inverter boards. Reseat all connectors.
- Inspect boards: Look for burnt components, corrosion, or moisture on the PCBs. Dry any moisture and clean light corrosion carefully.
- Replace faulty board: If visual damage is present or the error persists after reseating, replace the affected board with a Midea-compatible control module.
Advertisements
Repair Difficulty
Professional Required
5/5
Required Part
Main Control Board
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements