Heat Controller VMH C Series Service Manual page 38

Service Manual
9.2.7 High temperature protection of compressor top diagnosis and solution.
Does compressor operate?
Is refrigerant circulation
volume normal?
Is abnormality the same
after gas charging?
There is a blockage (Such as capillary or welded points of the pipes.)
9.2.8 Inverter compressor drive error diagnosis and solution.
Is the connection of the compressor
good? Is the wiring sequence right? The
voltage range proper?
Replace the outdoor PCB
VMH 30, 36 SerieS
No
Yes
No,
Charge refrigerant
Yes
Is the connection good
Yes
Is protector normal?
Yes
Replace the outdoor PCB.
No
No
Replace inverter compressor.
36
38
No
Reconnect it
No
Replace it
Reconnect and retry
Heat Controller