Section 15, Troubleshooting - Gardner Denver VST110 Operating And Service Manual

SECTION 15
TROUBLESHOOTING
Air/oil under pressure will cause severe personal injury or death. Shut down
compressor, relieve system of all pressure, disconnect, lockout and tagout
power supply to the compressor package before removing valves, caps, plugs,
fittings, bolts and filters.
SYMPTOM
1.
Compressor
2.
fails to start
3.
4.
5.
6.
7.
Compressor
1.
starts but
stops after a
short time
2.
3.
4.
5.
POSSIBLE CAUSE
Main disconnect open
Blown fuses in control box
Variable Frequency Drive fault
active
Shutdown event sensed by
controller not re-set
Read error message on control
panel
Remote Contact is open
Compressor lock-up
High discharge temperature
Low oil injection pressure
Blown fuse in control box
Variable Frequency Drive
overload sensor tripped
Compressor lock-up
13-17-605 Page 77
REMEDY
1. Check and reset.
2. Replace fuse.
3. Investigate cause of fault and press
"STOP/RESET" button to reset.
4. Investigate cause of fault and press
"STOP/RESET" button to reset.
5. Take appropriate action. See Manual
13-17-600.
6. Replace switch or jumper.
7. Confirm compressor shaft is not free
to turn, then call Gardner Denver for
further instructions. See "High
Discharge Air Temperature", this
section.
See "High Discharge Air
1.
Temperature," this section.
2. Check oil level.
Check oil filter dP.
3. Replace fuse (investigate if fuses
continue to blow).
4.
Reset and investigate cause of
overload.
5. Confirm compressor shaft is not free
to turn, and then call Gardner Denver
for further instructions.