Ol Activation (Compressor Overload) - Daikin FFQ09Q2VJUFFQ12Q2VJUFFQ15Q2VJUFFQ18Q2VJURX09QMVJURX12QMVJURX15QMVJURX18QMVJU Service Manual

SiUS091628EA

4.15 OL Activation (Compressor Overload)

E5
Error Code
Method of Error A compressor overload is detected through compressor OL.
Detection
Error Decision
Conditions
Supposed
Causes
Service Diagnosis
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
Troubleshooting
80