Service Manual 283
Self-diagnosis function
Trouble shooting Flow
Fault diagnosis and Trouble shooting guide
106
Error Item
Error
Display No.
Major Error Occurrence Cause
Meaning
Over-current of outdoor
unit fan motor (IPM fault)
Over-current of
outdoor unit fan motor
(IPM fault)
• Fan lock
• RPM down due to obstacle contact with
outdoor unit fan
• Overheat of heatsink
No
Remove locked obstacle
(rod or bar, etc).
Yes
Is the outdoor unit fan locked?
No
Check around the outdoor unit fan
(suspended line, etc).
Yes
Is there obstacle that
interferes with rotation of the outdoor
unit fan?
No
Check the cooling fan.
Yes
Is cooling of the heatsink sufficient?
Check or replace the fan PCB
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 ...