TROUBLESHOOTING
10/2022 59 NP-DK50 2V-A-4_10-2022-AD
TROUBLESHOOTING
Risk of electric shock.
Before any of the following operations on the device, disconnect the device from
the mains (pull out the mains plug).
Risk of injury during work with pneumatic components under pressure.
Before any of the following operations on the device, it is necessary to decrease
pressure in the air tank and in the pneumatic system to zero.
Any operations concerning the troubleshooting may be performed only by
a qualified technician.
Compressor does
not switch on
No voltage in the pressure switch
Check circuit breaker switch –
switch to position switched-on „I“
Loose conductor from terminal -
repair
Check electrical cord – replace
defective cord
Motor winding failure, damaged
thermal protection
Replace motor or windings
Seized piston or other rotating part
Replace damaged components
Pressure switch does not switch
Check function of pressure switch
The cabinet switch
does not switch off
the compressor
There is a compressor in the cabinet
that previously worked separately
(there is a jumper in the compressor
terminal strip)
Remove the jumper from the
terminal strip, see chap. 22.11
Compressor often
switches on
Air leakage in pneumatic system
Check pneumatic system – seal
loose connections
Non-return valve (SV) leakage
Clean non-return valve, replace
seals, replace non-return valve
Large volume of condensed liquid in
pressure tank
Check time of filling the air tank
Low pressure in
the air tank
(compressor
running constantly)
High air consumption of supplied
equipment
Decrease air consumption
Use compressor with higher
capacity
Leakage in pneumatic system
Check pneumatic system – seal
loose connections
Prolonged
operation of the
compressor
Air leakage in pneumatic system
Check pneumatic system – seal
loose connection
Replace dirty filter with new filter
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