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SiSG121917E
Troubleshooting for Outdoor Unit
Part 6 Service Diagnosis
148
7.8 OL Activation (Compressor Overload)
Error Code
E5
Outdoor Unit LED
Display
A
j
1
i
2
h
3
i
4
h
5
h
Method of Error
Detection
A compressor overload is detected through compressor OL.
Error Decision
Conditions
If the error repeats, the system is shut down.
Reset condition: Continuous run for about 60 minutes without any other error
Supposed
Causes
Disconnection of discharge pipe thermistor
Defective discharge pipe thermistor
Disconnection of connector S40
Disconnection of 2 terminals of OL (Q1L)
Defective OL (Q1L)
Broken OL harness
Defective electronic expansion valve or coil
Defective outdoor unit PCB
Refrigerant shortage
Water mixed in refrigerant
Defective stop valve