Ol Activation (Compressor Overload) - Daikin CTXG09QVJUW Service Manual

Troubleshooting for Outdoor Unit
7.7

OL Activation (Compressor Overload)

E5
Error Code
Outdoor Unit LED A
Display
Method of Error A compressor overload is detected through compressor OL.
Detection
Error Decision
Conditions
Supposed
Causes
170
j i h i h
1 2 3 4
If the error repeats, the system is shut down.
Reset condition: Continuous run for about 60 minutes without any other error
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 four way valve or coil
Defective outdoor unit PCB
Refrigerant shortage
Water mixed in refrigerant
Defective stop valve
h
5
SiUS121630EA
Service Diagnosis