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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
Compressor fails
1.
to start
2.
3.
4.
5.
6.
7.
8.
Compressor
1.
starts but stops
after a short time
2.
3.
4.
POSSIBLE CAUSE
Main disconnect open
Blown fuses in control box
Shutdown event sensed by
controller not re-set
Read error message on control
panel
Remote Contact is open
Variable Frequency Drive fault
active
System pressure exceeds set
pressure
Compressor lock-up
High discharge temperature
Low oil injection pressure
Blown fuse in control box
Variable Frequency Drive
overload sensor tripped
13-18-612
REMEDY
1.
Check and reset.
2.
Check voltage and fuses. Replace
fuses.
3.
Investigate cause of fault and press
"STOP/RESET" button to reset.
4.
Take appropriate action. See Manual
13-17-600.
5.
Replace switch or jumper.
6.
Investigate and correct cause of fault
and press "STOP/RESET" button to
reset.
7.
Wait until system pressure falls below
set pressure.
8.
Confirm compressor shaft is not free
to turn. Contact GD for further
instructions.
See "High Discharge Air
1.
Temperature," this section.
2.
Check oil filter dP.
3.
Replace fuse (investigate if fuses
continue to blow).
4.
Reset and investigate cause of
overload.
Page 80
15-1
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