Troubleshooting; Possible Cause - EKOM DUO Benutzerhandbuch

DUO, DUO 2V, DUO 2

TROUBLESHOOTING

CAUTION! BEFORE PROCEEDING, DEPRESSURIZE THE AIR TANK TO ZERO AND
DISCONNECT THE DEVICE FROM THE MAINS.
For permanently high efficiency of drying, it is necessary to maintain the whole device, and
mainly fan clean – regularly clean the surface of fan and cooling fins of cooler.
Troubleshooting can be performed only by qualified personnel.
To follow the rules of personal hygiene for works with contaminated material. To
separate, label, packing and providing for decontamination of contaminated parts
by course of national regulations.
MALFUNCTIONS
Compressor does
not start
Compressor often
switches on
Low pressure in air
tank (compressor
running constantly)
Prolonged operation
of the compressor
Compressor is noisy
(knocking, metal
noises)
The suction unit is
not running,
or is running
irregularly
05/2018

POSSIBLE CAUSE

No voltage at the pressure switch
Motor winding failure, damaged
thermal overload protection
Faulty capacitor
Seized piston or other rotating part
Pressure switch does not switch
Air leak in compressed air
distribution system
Leaking non-return valve
Large volume of condensed liquid in
pressure vessel
Low compressor performance
High air usage by device, Leak from
pneumatic distribution system, Low
air pump output
Air pump malfunction
Dryer malfunction
Leak from pneumatic distribution
system
Worn piston ring
Inlet filter is plugged
Defective solenoid valve
Damaged piston bearing, piston rod,
motor bearing
Loose or cracked spring
No voltage at the suction unit
terminals
Check voltage in socket
Check the breaker switch - and
switch to the "I" on position
Loose conductor at terminal – tighten
Check the electrical cord – replace
defective cord
Replace motor or windings
Replace capacitor
Replace damaged parts
Check the function of the pressure
switch
Check compressed air distribution
system – seal loose joints
Clean non-return valve, replace
seals, replace non-return valve
Drain condensed liquid
Check the time to fill the air tank
Check compressed air distribution
system – seal loose joint
Replace worn piston ring
Replace old filter with a new filter
Repair or change the valve or coil
Replace damaged bearing
Replace damaged spring
Check voltage in socket
Check the fuses - replace faulty fuse
Loose terminal - tighten
Check the electrical cord - replace
defective cord
Check for control voltage
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REMEDY
NP-DUO-2_05-2018-MD