EC
TCL Refrigerant Leak or Low Refrigerant Protection

Dehumidifier shows EC and stops cooling; fan may still run.

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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

Refrigerant leak in evaporator or condenser, Poor solder joint at tubing, Capillary tube restriction, Faulty pressure or temperature sensing leading to EC

How to Fix / Troubleshooting

Safety: Unplug the unit. Refrigerant handling must be done by a licensed technician.

  • Visual inspection: Remove the front cover and inspect the evaporator and condenser coils for oily residue, which can indicate a refrigerant leak.
  • Check performance: If the unit runs but removes very little moisture and EC appears, the system may be low on refrigerant.
  • Clean coils and fan: Ensure coils and fan are clean to rule out airflow issues that can mimic low refrigerant symptoms.
  • Professional service: Do not attempt to recharge or repair the sealed system yourself. Contact a qualified refrigeration technician to locate leaks, repair tubing, evacuate, and recharge the system to TCL specifications.
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Repair Difficulty

Professional Required 5/5
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