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SiENBE04-507A
Troubleshooting
Service Diagnosis
121
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 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.4
Refer to P.144
Check No.5
Refer to P.145
Check No.6
Refer to P.146
Check No.11
Refer to P.148
Insert the thermistor in
position.
Replace the discharge pipe
thermistor.
Replace the valve itself or
the coil.
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.
(R2841)
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Discharge pipe thermistor
disconnected?
Check No. 11
Check the refrigerant line.
Check No. 6
Check the thermistors
Check No. 4
Check the electronic
expantion valve.
Check No. 5
Check the four way valve.
Caution
YES
NO
Functioning
Functioning
Functioning
Functioning
Malfunctioning
Malfunctioning
Malfunctioning
Malfunctioning
∗
Refrigerant shortage
∗
Water mixed
∗
Stop valve defective
∗
Discharge pipe thermistor
Содержание FTKS20D2VMWL
Страница 10: ...SiENBE04 507A List of Functions 1 Part 1 List of Functions 1 List of Functions 2...
Страница 16: ...SiENBE04 507A Specifications 7 Part 2 Specifications 1 Specifications 8 1 1 Cooling Only 8 1 2 Heat Pump 21...
Страница 53: ...Printed Circuit Board Connector Wiring Diagram SiENBE04 507A 44 Printed Circuit Board Connector Wiring Diagram...
Страница 85: ...Control Specification SiENBE04 507A 76 Function and Control...
Страница 159: ...Check SiENBE04 507A 150 Service Diagnosis...
Страница 198: ...SiENBE04 507A Outdoor Unit Removal Procedure 189 When reassembling make sure to fit the hook Step Procedure Points Hook...
Страница 212: ...SiENBE04 507A Others 203 Part 8 Others 1 Others 204 1 1 Test Run from the Remote Controller 204 1 2 Jumper Settings 205...
Страница 215: ...Others SiENBE04 507A 206 Others...
Страница 221: ...Wiring Diagrams SiENBE04 507A 212 Appendix...
Страница 225: ...SiENBE04 507A iv Index...