Daikin FTXN09KEVJU, Руководство по обслуживанию, Страница: 98 / 244

Troubleshooting SiUS041111
90 Service Diagnosis
4.9 OL Activation (Compressor Overload)
Remote
Controller
Display
E5
Method of
Malfunction
Detection
A compressor overload is detected through compressor OL.
Malfunction
Decision
Conditions

If the error repeats, the system is shut down.

Reset condition: Continuous run for about 60 minutes without any other error

The operating temperature condition is not specified.
Supposed
Causes

Defective discharge pipe thermistor

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
Check No.01
Refer to P.116
Check No.12
Refer to P.118
Check No.13
Refer to P.119
Check No.14
Refer to P.119
(R14438)
Caution
YES
NG
NO
OK
OK
NG
NG
OK
NG
OK
∗
Refrigerant shortage
∗
Water mixed
∗
Stop valve
∗
Discharge pipe thermistor
Insert the thermistor in
position.
Replace the discharge pipe
thermistor.
Replace the electronic
expansion valve or the coil.
Refer to the refrigerant line
check procedure.
Replace the outdoor unit
PCB.
Replace the four way valve
or the coil.
Replace the outdoor unit
PCB.
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Discharge pipe
thermistor
disconnected?
Check No. 01
Check the thermistors.
Check No. 12
Check the electronic
expansion valve.
Check No. 13
Check the four way
valve.
Check No. 14
Check the refrigerant
line.