294
Trouble Shooting Guide
Thermistor.
Replace the pressure sensor.
High/Low Pressure Sensor.
Is pressure on the LGMV before
operation normal?
Start of check
Reconnect.
No failure of pressure sensor.
No
Check and
replace the PCB.
No
No
Yes
Yes
Are connector
position on the main/Sub PCB
and connection
normal?
Yes
Is voltage output of 5V normal?
Replace the
thermistor.
Is temperature on the LGMV
before operation normal?
Start of check
• Check connector position and
connection direction.
• Check any poor contact.
No failure of thermometer thermistor.
No
Check and
replace the PCB.
No
Yes
Yes
Is voltage output of 5V normal?
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 ...