292
Trouble Shooting Guide
Is operation noise
heard when applying solenoid
valve power?
Start of check.
Replace coils.
Liquid Injection Valve.
No failure of liquid injection valve.
No
Replace the valve.
No
Yes
Is temperature
different between both ends of the valve when
the compressor discharge temperature
is normal?
No
Is the connector on the PCB board
normally connected?
Start of check
Reconnect the connector
on the PCB board
Replace the fan motor.
Constant Speed Outdoor Unit Fan
No failure of the fan motor of
constant speed outdoor unit
No
No
Yes
Yes
Does the fan operate in
load condition of more than 30%
heating operation?
Does the fan operate
in load condition of more than
30% cooling
operation?
No
Self-diagnosis function
Summary of Contents for multi V PLUS
Page 21: ...Service Manual 21 Indoor Unit Indoor Units ...
Page 74: ...74 Indoor Unit ...
Page 86: ...86 Indoor Unit ...
Page 142: ...142 Indoor Unit ...
Page 160: ...160 Indoor Unit ...
Page 179: ...Service Manual 179 Outdoor unit ...
Page 239: ...Service Manual 239 Wiring Diagrams 5 8 60Hz 220V Main Outdoor Unit 8HP 10HP 12HP ...
Page 245: ...Service Manual 245 Trouble shooting guide ...
Page 296: ...296 Trouble Shooting Guide ...
Page 297: ...Service Manual 297 Appendix ...
Page 303: ...Service Manual 303 Exploded View Replacement Parts List ...