E6
Midea Communication Error Between Display Board and Main Control Board

Freezer displays E6; compressor may not run or may shut off unexpectedly

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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

Loose harness between user interface and main PCB, Damaged communication cable, Oxidized connectors, Failed display PCB or main control PCB

How to Fix / Troubleshooting

Safety first: Disconnect power before removing control panel covers. Electronic boards are sensitive to static; avoid touching components unnecessarily.

Steps to address E6:

  • Power cycle: Unplug the freezer for 10 minutes, then reconnect. If E6 reappears, proceed with inspection.
  • Access control panel: Remove screws or clips holding the front control panel or top console. Carefully pull it forward to expose the display board and wiring.
  • Check connectors: Locate the multi-pin harness that runs from the display board to the main control board (often at the rear). Reseat both ends: unplug, inspect for corrosion or bent pins, and firmly reconnect.
  • Inspect cable: Follow the cable path through the cabinet. Look for pinched, cut, or chewed sections. Replace the harness if damaged.
  • Board evaluation: If wiring is intact, inspect both boards for burnt components or cracked solder joints. If one board is visibly damaged, replace that board with a Midea-compatible part.

Note: Board-level diagnosis beyond visual inspection is best handled by a professional with proper tools.

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Repair Difficulty

Hard 4/5

Required Part

Main Control Board
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