E18
Weasy
Refrigerant System Low Charge / Leak Detected
E18 error; refrigerant system low-pressure or no-cool fault, unit runs but makes no ice.
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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, Factory undercharge, Blocked capillary tube, Faulty low-pressure sensor (if equipped)
How to Fix / Troubleshooting
Safety first: Do not attempt to open the sealed refrigeration system unless you are a certified technician with proper equipment.
- Confirm airflow and fans: Ensure condenser fan and evaporator fan (if present) are operating and coils are clean.
- Check evaporator frost pattern: After running for 10–15 minutes, inspect the evaporator plate. A partial frost pattern or no frost suggests a sealed system issue.
- Listen for compressor: Confirm the compressor is running continuously when cooling is requested.
- Inspect for oil stains: Look for oily residue on tubing joints, which can indicate a refrigerant leak.
- Contact a qualified refrigeration technician: Sealed system diagnosis, leak detection, evacuation, and recharging require specialized tools and must comply with regulations.
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Repair Difficulty
Professional Required
5/5
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