Service Manual 263
Self-diagnosis function
No
Replace the indoor unit PCB
No
Repair the
connection
Yes
Yes
Fault diagnosis and Trouble shooting guide
03
Failure Checking Method
Error Item
Error Display
No.
Major Error Occurrence Cause
Meaning
Communication error
between wired remote
controller and indoor unit
If failing to receive wired
remote control signal at the
indoor unit
• Defective wired remote control
• Defective indoor unit PCB
• Poor connection, contact
Check transmission signal from the
indoor PCB is normal
Is transmission signal normal?
Check connection between indoor unit
and wired remote controller
Is connection normal?
Check or replace the
wired remote controller
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 ...