8.1.3 Fault finding in electrical control system
Description Cause Rectification
Control system does not
switch on.
No control voltage present.
Control fuse defective.
Control voltage circuit inter-
rupted due to loose line or
terminals.
Thermal over-current relay
has responded.
Check the supply line.
Replace fuse and rectify the
cause.
Tighten the terminals.
Check compressor drive and
correct the settings.
Thermal over-current relay for
drive motor responds.
Power consumption too high.
Over-current relay is set too
low.
Check compressor drive.
Rectify the setting.
Control system does not
switch off; the final pressure
safety valve blows off.
Final pressure monitor is set
too high.
Final pressure safety valve de-
fective.
Rectify the setting.
Replace the safety valve.
8.1.4 Error display B-TIMER
Description Cause Rectification
"Error 1" or "Error 2" is shown
on the display.
Temperature sensor defec-
tive.
B-TIMER must not be used
any longer. BAUER Contact
the Customer Service and get
the device repaired.
8.1.5 Fault finding in automatic condensate drain
Description
Cause Rectification
Condensate drain valves do
not close.
No pilot air present.
Condensate drain valves con-
taminated and therefore leak-
ing.
Check the feed of the pilot
air.
Remove and clean conden-
sate drain valves.
Condensate drain valves do
not open.
Condensate drain valve piston
blocked.
Remove and clean conden-
sate drain valves. Replace
condensate drain valves, if
necessary.
Solenoid valve does not close. Solenoid valve defective.
Solenoid valve does not re-
ceive power.
Check solenoid valve and re-
place if necessary.
Check electrical control sys-
tem and timer.
Solenoid valve does not open. Solenoid valve defective.
Continuous voltage on sole-
noid valve.
Check solenoid valve and re-
place if necessary.
Check electrical control sys-
tem and timer.
Inadequate water removal, a
lot of condensate when the
manual drain cocks are
opened.
Nozzles in the condensate
drain valves associated with
the 3rd or 4thstage blocked.
Unscrew and clean the noz-
zles of the condensate drain
valves associatedwith the 3rd
and 4th stages.
8 | Troubleshooting OPERATING MANUAL
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A_Compact-Line_002_en
10-10-2016
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