The phenomena from main component failure
Service Manual 247
1. The phenomena from main component failure
The phenomena from main component failure
Compressor
Outdoor
fan
Outdoor
LEV
Not operating
Stop during running
Loud noise during
running
High pressure error
at cooling
Heating failure, fre-
quent defrosting
No operating sound
at applying power
Heating failure,
Frozen outdoor heat
exchanger part
Low pressure error
or discharge temper-
ature error
Motor insulation broken
Strainer locking
Oil shortage
Motor insulation failure
Phase sequence fault
Motor failure,
Bad ventilation around
outdoor heat exchanger
Bad connector contact
Coil failure
LEV clogged
LEV clogged
Check resistance between terminals and
chassis
Service necessary
Open drain cock and check oil
Check resistance between terminals and
chassis
Check wiring(R, S, T) sequence, or lnter
change last two phase connection.
Check the outdoor fan operation after being
turned the Outdoor Unit off for some time.
Remove obstacles around the Outdoor Unit
Check connector
Check resistance between terminals
Service necessary
Service necessary
Component
Phenomenon
Cause
Check method and Trouble shooting
When system fault occurs, the error code is displayed at Indoor Unit display or remote control display, the trou-
ble shooting guide is in the service manual
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 ...