5 Troubleshooting
5 Troubleshooting
Should any problem occur, inspect with the following table, and if the problem cannot be solved, shut off the
power supply and then contact one of our sales offices for further instructions.
Problem Probable
Causes
Remedy
Power cord or plug is loose or
not connected to the power
source.
Perform proper connection on the power cord and
plug.
Air dryer does not
operate and run
lamp does not light
on, when the switch
is ON.
Circuit breaker is OFF.
Confirm whether the proper capacity of the circuit
breaker is used.
It is not possible to restart the air dryer within 3
minutes after shutdown. Wait for 3 minutes before
restarting.
Resume the operation after resetting the circuit
breaker to ON. If the circuit breaker still trip to OFF,
failure of electrical insulation may have occurred.
Remove the power supply and contact the factory for
further instructions.
Installation place is poorly
ventilated.
Ambient temperature is too high.
Improve the ventilation system to lower the ambient
temperature.
The ventilation grilles are
obstructed by wall or clogged
with dust.
Install the air dryer more than 0.6m away from the
wall.Clean the ventilation grilles once a month.
Temperature of the
Compressed air is too high.
Improve the ventilation system around air or make
ambient temperature low.
Reduce the temperature of the compressed air by
installing an additional aftercooler before the air
dryer.
Running lamp
extinguishes and
compressor stops
during operation but
resumes normal
operation
illuminating the
lamp after a
period of time.
Supply voltage is not in the
following range:
Set the voltage to a proper value by installing a
transformer or review the electrical wiring.
Installation place is poorly
ventilated.
Ambient temperature is too high.
Improve the ventilation system to lower the ambient
temperature.
The ventilation grilles are
obstructed by wall or clogged
with dust.
Install the air dryer more than 0.6m away from the
wall.Clean the ventilation grilles once a month.
Evaporation
thermometer
indicates higher
than green zone.
Temperature of the
compressed air is too high.
Improve the ventilation system around the air
compressor or make ambient temperature around
the air compressor low to lower the temperature of
discharge from compressor.
Reduce the temperature of the compressed air by
installing an additional after-cooler after the air dryer.
Bypass valve of air dryer is not
fully closed.
Close the valve completely.
Drain is not discharged from auto
drain properly.
Check if the drainpipe has fluid trap or bent.
Check auto drain.
Check auto drain strainer.
Moisture occurs
downstream of the
compressed
air lines.
Moisture from separate air
circuit that is without air dryer.
Install additional air dryer on the line that does not have
one.
Separate two lines not to converge.
IN/OUT valve on the air dryer
side is not fully opened.
Open IN/OUT valve fully.
Large pressure
drop
Filter that is installed separately
in compressed air line is clogged.
Replace the filter element.
(Follow the instruction manual of each individual
device.)
5 - 1