TROUBLESHOOTING
NP-eVENT-16_10-2018 21
6. TROUBLESHOOTING
Prior to servicing the equipment, reduce the pressure in the air tank to
zero and disconnect the equipment from the main power supply.
Only trained service personnel can perform the activities listed in the
troubleshooting guide.
Compressor
does not start
Switched off main breaker in distribution
system
No current from the pressure
switch
Loose wire terminal – tighten
Power cord defective – replace
Interrupted winding of motor,
damaged thermal protection
Jammed piston or another parts
Pressure switch does not switch
on
The humidity
indicator is out
of the green
zone
Leakage of air from pneumatic
distribution system
Inspect pneumatic distribution system –
seal loose connection
Large consumption of
compressed air
Do not exceed max. flow (see Technical
data)
Compressor
often switches
on
Leakage of air from pneumatic
distribution system
inspect pneumatic distribution system –
seal loose connection
Clean check valve, replace seal,
replace check valve
The operation
of compressor
is extended
Leakage of air from pneumatic
distribution system
Inspect pneumatic distribution system –
seal loose connection
Replace worn out piston rings
Replace the dirty inserts
Red indication
lights – state
of overheating
Clean or replace the dirty suction filter
Replace the dirty inserts with new ones
Replace fans or faulty thermal switch
Unit is hot, unventilated area
Compressor is
noisy
(knocking,
metal noises)
Damaged piston bearing or
bearing on motor
Loose (cracked) belt on the
compressor hanger
Water coming
out of outlets
Water trap (13) or (14) not
working
Clean or replace the water trap
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