EKOM 447000001-066, User Manual

Page: 63 / 72

TROUBLESHOOTING
04/2022 63 NP-DK50-9x4VRTM-AD-EN-5_04-2022
TROUBLESHOOTING
Risk of electric shock.
Before interfering with the
equipment, first disconnect it
from the mains (remove the
power socket).
Working with pressurised
pneumatic components poses a
risk of injury.
Before interfering with the
equipment, vent the air tank and
the compressed air system to
zero pressure.
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 Possible cause Solution
Compressor does not
start
Problem with electrical power source Main breaker is off
Power loss
Check mains voltage
Loose terminal in switchboard
– tighten
Check the primary power connection -
replace if damaged
Pressure switch failed
Check terminals and operation of the
pressure switch - replace if damaged
Any of the air pumps
does not start up
(indicator is on)
Loss of power to motor
Check mains voltage
Check the function of the contactor, and
thermal relays - replace if damaged
Loose terminals at the motor terminal
strip - tighten or replace if damaged or
broken
Motor winding shorted, damaged /open
thermal protection/ high ambient
temperature
Replace the motor / decrease the
ambient temperature
Seized up piston or other moving
component (mechanical damage to a
moving part)
Replace damaged parts
Controller malfunction
Check controller operation, check to
ensure software is present - replace if
damaged or upload the correct program
RUN/STOP indicator
is not green
Loss of connection between controller
and expansion module
Check connection
– replace if damaged
Power loss
Check mains voltage
Loose terminal in switchboard
– tighten
Check the primary power connection -
replace if damaged
Problem with electrical power source Main breaker is off
Controller or expansion module
malfunction Replace failed controller or expansion
module
Air pumps switch
often, even without
demand for air
Air leak in compressed air distribution
system Check compressed air distribution
system
– seal loose joints
Leaky non-return valves
Test non-return vales and clean, or
replace if damaged