Daikin ARXG25E3V1B, Service Manual

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SiBE04-809 Troubleshooting
Service Diagnosis 89
4.11 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 compressor OL is activated twice, the system will be shut down.
The error counter will reset itself if this or any other error does not occur during the following
60-minute compressor running time (total time).
∗
The operating temperature condition is not specified.
Supposed
Causes Refrigerant shortage
Four way valve malfunctioning
Outdoor unit PCB defective
Water mixed in the local piping
Electronic expansion valve defective
Stop valve defective
Troubleshooting
Check No.04
Refer to P.116
Check No.05
Refer to P.117
Check No.06
Refer to P.118
Check No.11
Refer to P.121
(R7137)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
YES
Malfunctioning
∗
Discharge pipe thermistor
NO
Functioning
Functioning
Malfunctioning
∗
Refrigerant shortage
∗
Water mixed
∗
Stop valve defective
Malfunctioning
Functioning
Malfunctioning
Functioning
Insert the thermistor in
position.
Replace the discharge pipe
thermistor.
Replace the valve itself or
the coil.
Refer to the refrigerant line
check procedure.
Replace the outdoor unit
PCB.
Replace the four way valve
coil or the valve itself.
Replace the outdoor unit
PCB.
Discharge
pipe thermistor
disconnected?
Check No. 06
Check the thermistors.
Check No. 05
Check the four way
valve.
Check No. 11
Check the refrigerant
line.
Check No. 04
Check the electronic
expansion valve.