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11 Troubleshooting
52
11
Troublesh ooting
For faults or warnings which were diagnosed by the GD Pilot compressor control, please read the
section “Table of Faults/Warnings” in the GD Pilot user manual.
Fault
Possible Cause
Remedy
The system will not start.
1.
Missing operating or control voltage
1.
Check fuses, main switch and supply
cable
2.
Fault has not been acknowledged
2.
Fault message must be acknowledged
3.
Pressure reservoir is not depressurized 3.
Wait for discharge
Screw compressor will not start if the
reservoir pressure is > 11.6 PSI for
L23-L29 and > 29.0 PSI for L23RS-
L29RS
4.
Electric motor is defective
4.
Check connections, winding, etc.
5.
Compressor is defective
5.
Turn the compressor by hand
possibly replace
6.
Ambient Temp < 33.8 °F
6.
Make sure that the ambient
temperature is at least 33.8 °F,
possibly provide an idle heater
7.
Remote operation via the connection
terminal is active
7.
Deactivate remote operation
8.
The system pressure is above the
lower switching point
8.
Wait until the system pressure has
fallen below the switching point
The system stops during
the start-up phase
1.
Suction regulator only closes part way,
pressure builds up too quickly in the
pressure reservoir
1.
Make the suction regulator viable,
replace if necessary, check the
solenoid valve
2.
System short
2.
Determine cause and remedy, replace
defective fuses
3.
Connection terminal in switch cabinet
is loose
3.
Check and tighten
4.
Oil is too viscous
4.
Choose type of oil which suits the
environmental conditions or install an
idle heater
5.
Maximum motor cycles exceeded due
to manually switching off and on too
often
5.
Avoid frequent manual on and off
switching, let the electric motor cool
1.
System pressure sensor set too low
1.
Check, reset
System doesn
ʼ
t reach
the system pressure set
2.
Suction regulator only opens partially
2.
Make the suction regulator viable,
replace if necessary, check the
solenoid valve
3.
Air bleed too large
3.
Throttle the bleed or attach additional
compressors
4
Fine oil separator is dirty
5.
Replace the fine oil separator
cartridge
5
Air filter is dirty
6.
Replace air filter cartridge
6
Large leaks in the compressor system
7.
Check the unit
Summary of Contents for L23
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Page 61: ...12 Appendix 59 Fig 33 All dimensions in inches ...
Page 62: ...12 Appendix 60 Fig 34 All dimensions in inches ...
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