E30
Midea
General System / Sensor Error
Dishwasher shows E30; unit may not start and may indicate a generic system error.
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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
Multiple sensor faults (NTC, level, leak), Control board internal error, Wiring harness damage, Moisture on control connectors
How to Fix / Troubleshooting
Safety first: Turn off power at the breaker before inspection.
- Power reset: Leave the dishwasher powered off for 10 minutes, then restore power and attempt a short cycle.
- Inspect wiring harness: Remove the kick panel and inner door panel. Look for pinched, chewed, or burned wires, especially around the door hinge area.
- Check for moisture: Inspect the control board and connectors for signs of moisture or condensation. Dry gently with a soft cloth and allow time to air dry.
- Run diagnostics: If your Midea model supports a diagnostic mode (refer to service manual), run it to identify specific sub-errors.
- Professional diagnosis: Because E30 can indicate multiple issues, a technician with access to Midea service documentation may be required.
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Repair Difficulty
Professional Required
5/5
Required Part
Midea Main Control Board (PCB)
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