EKOM DK50 PLUS MOBILE Benutzerhandbuch Seite 34

Any operations concerning the troubleshooting may be performed only by
a qualified technician.
Malfunction
Compressor does
not switch on
Compressor often
switches on
Low pressure in
the air tank
(compressor
running constantly)
Prolonged
operation of the
compressor
Compressor is
noisy (knocking,
metal noises)
Dryer does not dry
(condensed water
in the air) *
)* Clean inside surfaces of the air tank thoroughly and remove all condensed liquid after dryer failure.
NP-DK50 PLUS, 2V-MOBILE-A-4_12-2019-MD
Possible cause
No voltage in the pressure switch
Motor winding failure, damaged
thermal protection
Capacitor failure
Seized piston or other rotating part
Pressure switch does not switch
Air leakage in pneumatic system
Non-return valve (SV) leakage
Large volume of condensed liquid in
pressure tank
Low compressor capacity
High air consumption of supplied
equipment
Leakage in pneumatic system
Low capacity of the pump
Pump failure
Dryer failure
Air leakage in pneumatic system
Worn piston ring
Dirty inlet filter
Incorrect function of solenoid valve
Damaged piston bearing, piston
rods, motor bearing
Loose (cracked) dampening
element (spring)
Defective cooler fan
Damaged dryer
Defective automatic condensate
drain
Solution
Check voltage in socket
Check circuit breaker switch –
switch to position switched-on „I"
Loose conductor from terminal -
repair
Check electrical cord – replace
defective cord
Replace motor or windings
Replace capacitor
Replace damaged components
Check function of pressure switch
Check pneumatic system – seal
loose connections
Clean non-return valve, replace
seals, replace non-return valve
Drain condensed liquid
Check time of filling the air tank
Decrease air consumption
Use compressor with higher
capacity
Check pneumatic system – seal
loose connections
Clean / replace the pump
Clean / replace the pump
Replace dryer
Check pneumatic system – seal
loose connection
Replace worn piston ring
Replace dirty filter with new filter
Repair or replace fan or coil
Replace damaged bearing
Replace damaged spring
Replace fan
Check power source
Replace dryer
Clean / replace
34
TROUBLESHOOTING
12/2019