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Troubleshooting
Si01-406
96
Service Diagnosis
4.8
OL Activation
(
Compressor Overload
)
(E5)
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
Stop valve defective
Troubleshooting
Check No.5
Refer to P.115
Check No.11
Refer to P.120
Replace the four way valve
coil or the valve itself.
Replace the outdoor unit
PCB.
Refer to the refrigerant line
check procedure.
Replace the outdoor unit
PCB.
(R3073)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Functioning
Check No. 11
Check the refrigerant line.
Malfunctioning
∗
Refrigerant shortage
∗
Water mixed
∗
Stop valve defective
Malfunctioning
Functioning
Check No. 5
Check the four way valve.
Summary of Contents for FT25CV1A
Page 7: ...Si01 406 vi Table of Contents...
Page 15: ...Functions Si01 406 4 List of Function...
Page 21: ...Specifications Si01 406 10 Specifications...
Page 205: ...Wiring Diagrams Si01 406 194 Appendix...
Page 209: ...Si01 406 iv Index...