Ol Activation (Compressor Overload) - Daikin FTX-N Series Service Manual

SiUS091601EA
7.2

OL Activation (Compressor Overload)

E5
Error Code
Method of Error
A compressor overload is detected through compressor OL.
Detection
Error Decision  If the error repeats, the system is shut down.
Conditions  Reset condition: Continuous run for about 60 minutes without any other error
Supposed  Disconnection of discharge pipe thermistor
Causes  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
Part 6 Service Diagnosis
Troubleshooting for Outdoor Unit
154