EC
AEG
Refrigerant Leak Detection / Low Refrigerant Protection
EC displayed; unit may run briefly then stop with no effective cooling or heating.
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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 indoor or outdoor coil, Loose flare connections, Damaged copper piping, Faulty leak detection algorithm or sensor
How to Fix / Troubleshooting
Safety: Refrigerant must only be handled by certified personnel. Do not attempt to tighten flare nuts while the system is pressurised.
- Visual inspection: Look for oil stains on pipe joints, coils, and service valves. Oil often indicates a refrigerant leak.
- Listen and smell: Hissing sounds or unusual odours near joints may indicate a leak. Ventilate the area.
- Do not run the unit continuously: Operating with low refrigerant can damage the compressor.
- Call a technician: An AEG-qualified technician should pressure-test, locate the leak, repair the pipework or coil, evacuate, and recharge with the correct refrigerant type and weight.
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Repair Difficulty
Professional Required
5/5
Required Part
Refrigerant Piping / Coils
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