89
Error Code Diagnostics
E5 Error Code
Overcurrent Protection
E5
Overcurrent Protection
Status:
During cooling & dehumidifying, indoor unit
operates while other functions stop; During
heating operation, complete unit stops
1. Supply voltage is unstable
2. Supply voltage is too low
3. Coils are dirty
4. Improper refrigerant charge
Fault & Status Possible Causes
Start Troubleshooting
Check if compressor’s connection
line is properly connected
Yes
Check if current value is higher than
the protectors setting
Adjust compressor’s
connection line
No
Replace overcurrent protector
No
Yes
Is units high pressure normal
Refer to high pressure
protection error
No
Yes
Check if unit voltage is normal
Check connections, contact
electric utility company
No
Yes
Replace main board
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