5 Troubleshooting
5 - 1
5 Troubleshooting
5-1
Cause and countermeasure of errors
Should any problem occur, inspect 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.
Circuit breaker is OFF.
・
Confirm whether the correct 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.
Air dryer does not
operate and run
lamp does not light
on, when the switch
is ON.
Power line connection is wrong.
(Phase Reversal Relay switch
can’t be ON.)
Connect the power line correctly.
Installation place is poorly
ventilated.
Ambient temperature is too high.
・
Improve the ventilation system to lower the ambient
temperature.
・
Reset the protective circuit by referring to “5-2 How to
reset the thermal relay and high pressure switch.”
(Only IDFB55E,75E)
The ventilation grilles are
obstructed by wall or clogged
with dust.
・
Install the air dryer more than 2feet (0.6m) away from
the wall.
・
Clean the ventilation grilles once a month.
・
Reset the protective circuit by referring to “5-2 How to
reset the thermal relay and high pressure switch.”
(Only IDFB55E,75E)
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.
・
Reset the protective circuit by referring to “5-2 How to
reset the thermal relay and high pressure switch.”
(Only IDFB55E,75E)
Running lamp
extinguishes and
compressor stops
during operation but
resumes normal
operation
Switch with 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.
・
Reset the protective circuit by referring to “5-2 How to
reset the thermal relay and high pressure switch.”
(Only IDFB55E,75E)
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 2feet (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.
