Service Manual 289
No
No
Yes
Is difference
between high pressure
and low pressure more than
3 air pressure 15 minutes
after operation?
Is difference
between high pressure
and low pressure more than
3 air pressure 15 minutes
after operation?
Start of check.
Solve compressor
problems.
4-Way Valve
No failure of 4-Way valve.
Yes
Does the compressor
normally operate?
Reconnect the terminal.
Is connection of the
PCB terminal normal?
Yes
No
No
Yes
Replace the PCB.
Yes
Is voltage applied from
the PCB normal?
Check and replace the
4-way valve coil.
Restart.
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 ...