Troubleshooting DAMA-SM-21-001
69 Service Diagnosis
4.11 OL Activation (Compressor Overload)
Error Code E5
Description OL activation (compressor overload).
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
Possible Root
Causes
1. Disconnection of discharge pipe thermistor
2. Defective discharge pipe thermistor
3. Disconnection of connector S40
4. Disconnection of 2 terminals of OL (Q1L)
5. Defective OL (Q1L)
6. Broken OL harness
7. Defective electronic expansion valve or coil
8. Defective four way valve or coil
9. Defective outdoor unit PCB
10.Refrigerant shortage
11.Water mixed in refrigerant
12.Defective stop valve
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