EC
Meaco Refrigerant System / Cooling Efficiency Fault

Dehumidifier shows EC and stops dehumidifying

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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

Low refrigerant charge (leak), Blocked capillary tube, Severely dirty evaporator or condenser, Failing compressor

How to Fix / Troubleshooting

Safety: Unplug the unit. Do not attempt to cut or open refrigerant lines.

Steps:

  • Clean coils: Remove covers as per the service manual and gently clean both the evaporator coil and condenser coil with a soft brush and vacuum. Ensure fins are not bent.
  • Check fan operation: Confirm the fan runs smoothly at normal speed. Poor airflow can mimic a refrigerant fault.
  • Observe operation: After reassembly, run the unit for 15–20 minutes. Check if the evaporator gets uniformly cool and if water is collecting. If EC reappears and there is little or no condensation, a refrigerant issue is likely.
  • Professional service: Low refrigerant, leaks, or capillary blockages must be diagnosed and repaired by a certified refrigeration technician. They may need to replace the evaporator coil, condenser coil, or compressor and recharge the system.
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Repair Difficulty

Professional Required 5/5

Required Part

Sealed Refrigeration System
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