Troubleshooting - EKOM DK50 4VR/50 Manuel De L'utilisateur

TROUBLESHOOTING

Risk of electric shock.
Before interfering with the equipment, first disconnect it from the mains (remove
the power socket).
Troubleshooting may only be performed by a qualified service technician.
Damage to the safety valve could cause pressure to rise to hazardous levels.
Never adjust a safety valve.
Malfunction
Compressor does
not start
Cabinet switch does
not switch off the
compressor
Compressor often
switches on
Prolonged running
of compressor
Compressor is
noisy (knocking,
metal noises)
Dryer doesn't dry
(condensed water
in the air) *
)* Clean inside surfaces of the air tank thoroughly and remove all condensed liquid after dryer failure.
NP-DK50 4VR 50, DK50 2x4VR 110-MD-6_01-2022
Possible cause
No voltage in pressure switch
Disconnected winding
damaged thermal protection
Faulty capacitor
Seizure of piston or another rotary part Replace damaged parts
Pressure switch does not switch on
There is a compressor in the cabinet that
previously worked separately (there is a
jumper in the compressor terminal strip)
Air leak in pneumatic distribution
system
Leaking non-return valve
Greater volume of condensed liquid in
pressure vessel
Air leak in pneumatic
system
Worn piston ring
Contaminated inlet filter
Defective solenoid valve
Damaged bearing of piston, piston rod,
motor bearing
Loose or cracked spring
Cooling fan not working
Damaged dryer
Non-functioning automatic condensate
drain
Solution
Check voltage in socket
Check fuse – replace faulty one
Loosen terminal – tighten it
Check power cord – replace faulty
one
of motor,
Replace motor or re-wind it
Replace capacitor
Check the function of pressure
switch
Remove the jumper from the
terminal strip (see. chap. 18.11)
Check
system – seal loose joint
Clean valve, replace seals, replace
valve
Drain condensed liquid
distribution Check
system – seal loose joint
Replace worn piston ring
Replace contaminated filters with
the new ones
Repair or change the valve
Replace damaged bearing
Replace damaged spring
Replace the fan
Check the power source
Replace the dryer Clean / replace
56
TROUBLESHOOTING
pneumatic distribution
pneumatic distribution
01/2022