Service Manual 261
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Please refer to trouble shooting guide in service manual for each error title
CAUTION
In case that the control box is opened and before checking electrical parts, it should be checked that
the LED 01Y (Refer to next page) turned off (wait 3 minutes after main power OFF), otherwise, it may
cause electrical shock.
Compressor Off by excessive reduction of Sub2 Outdoor Unit
Low Pressure
Compressor Off by excessive increase of Sub2 Outdoor Unit
High Pressure
Compressor Off by excessive reduction of Sub2 Outdoor Unit
Low Pressure
Input voltage of Sub1 Outdoor Unit is more than 487V or less
than 270V
Open or short of outdoor voltage sensor of Sub1 Outdoor
Unit
Input voltage of Sub2 Outdoor Unit is more than 487V or less
than 270V
Open or short of outdoor voltage sensor of Sub2 Outdoor
Unit
Pressure unbalance between Outdoor Units
Low Pressure of Sub1 Outdoor Unit
High Pressure of Sub2 Outdoor Unit
(3Units)
Low Pressure of Sub2 Outdoor Unit
(3Units)
Short voltage/excess voltage of Sub1
Outdoor Unit
Voltage sensor of Sub1 Outdoor Unit
Short voltage/excess voltage of Sub2
Outdoor Unit (3Units)
Voltage sensor of Sub2 Outdoor Unit
(3Units)
Failure of operation mode conversion
Display
Title
Cause of Error
1
4
4
1
4
5
1
4
6
1
4
7
1
4
8
1
4
9
1
5
0
1
5
1
Outdoor Unit related error
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 ...