10. Trouble-shooting
49
10 Trouble-shooting
Malfunction
Possible cause
Remedy
Unit cannot be started
1.
No operating or control voltage
1.
Check fuses, main switch and supply line
2.
Malfunction not acknowledged
2.
Acknowledge fault message
3.
Pressure reservoir not depressurized
3.
Wait until depressurized
4.
Electric motor defective
4.
Check connections, winding, etc.
5.
Compressor
defective
5.
Turn the compressor manually;
if required, replace
6.
Ambient temperature less than
+1 °C/ 33.8 °F
6.
Make sure that the ambient temperature
is not less than +1 °C/ 33.8 °F; install an
auxiliary heater, if required
7.
Remote control has been activated via
terminal strip
7. Deactivate
remote control/timer
8.
Mains pressure is above the lower
switch set point
8.
Wait until the mains pressure has fallen
below the lower switch set point
Unit stops during the
start-up phase
1.
Intake regulator only closes partly,
pressure builds up too quickly in the
pressure reservoir
1.
Fix intake regulator or, if required,
replace; check solenoid valves
2.
Short-circuit in the unit
2.
Determine and eliminate cause; replace
defective fuses
3.
Connecting terminals in the switch
cabinet are loose
3.
Check and re-tighten
4.
Oil too viscous
4.
Select the type of oil according to the
ambient conditions or install an auxiliary
heater
5.
Maximum motor switching cycles
exceeded due to too frequent manual
on and off-switching
5.
Avoid frequent manual on and off-
switching, let electric motor cool down
Unit does not reach the
set mains pressure
1.
Mains pressure sensor set too low
1.
Check, re-set
2.
Intake regulator opens only partly
2.
Fix intake regulator or, if required,
replace; check solenoid valves
3.
Excessive air consumption
3.
Reduce consumption or cut in a further
compressor
4.
V-belt slips
4.
Replace the V-belt set
5.
Fine separator clogged
5.
Replace fine separator cartridge
6.
Air filter clogged
6.
Replace air filter cartridge
7.
Heavy leakage in the compressor
system
7.
Check unit
8.
Mains pressure exceeds the lower
switching point
8.
Wait until the mains pressure has fallen
below the lower switching point
Summary of Contents for L07
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