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IDX-OM-X011
Chapter 6
Troubleshooting
6.1
Troubleshooting
IDF190D/240D Series
6-2
Problem
Possible causes
Action
Evaporation
thermometer
indicates higher
than green zone
without warm air
coming from the
ventilation grille (air
exhaust).
(Refrigeration
Compressor may
stop with the lamp
ON)
Poor ventilation in installation
location.
Ambient temperature is too high.
- Keep the ambient temperature low by ventilation.
Ventilation grille is obstructed by a
wall or blocked with dust.
- Install so that the ventilation grill are 1.0m or more
away from the wall.
- Clean the ventilation grille every month.
Compressed air temperature is too
high.
- Improve the ventilation condition of the air
compressor or lower the ambient temperature to
decrease the discharge air temperature of the
compressor.
- Install an aftercooler after the air compressor to
reduce the temperature.
Large voltage fluctuation.
- Install the power transformer or revise the power
supply for correct voltage.
- Ensure power supply voltage fluctuation is within
+/-10% of the rated voltage.
Overload relay of the compressor
was activated.
- Check if the product was restarted within 3 minutes
after stopping the operation.
-Wait 3 minutes before restarting.
Evaporation
thermometer
indicates higher
than green zone
with warm air
coming from the
ventilation grille (air
exhaust).
Poor ventilation in installation
location.
Ambient temperature is too high.
- Keep the ambient temperature low by ventilation.
Ventilation grille is obstructed by a
wall or blocked with dust.
- Install so that the ventilation grille is 1.0m or more
away from the wall.
- Clean the ventilation grille every month.
Compressed air temperature is too
high.
- Improve the ventilation condition of the air
compressor or lower the ambient temperature to
decrease the discharge air temperature of the
compressor.
- Install an aftercooler after the air compressor to
reduce the temperature.
Moisture is
generated
downstream of the
compressed air line.
The bypass valve is open.
- Be sure to use the dryer with the bypass valve fully
closed.
Drain is not discharged from the
auto drain.
- Check that the drain tube is not trapped or bent.
- Check the auto drain.
- Ensure that the ball valve is opened.
- Use the product within the specified pressure range.
Large fluctuation (pulsation) of
compressed air
- Install an air tank.
- Avoid intermittent operation.
- Residual drainage in the air dryer
splashes over when the unit is
re-started.
- Install a filter on the outlet of the air dryer.
- Blow the unit with air to eliminate the residual drain
after stopping or re-starting the operation.
The piping converges downstream
of the dryer with a different air line
that does not have a dryer.
- Install a dryer in the line where this product is not
installed.
- Separate the two lines so they do not converge.
Large pressure drop
The valve in the inlet/ outlet piping
is not fully opened.
- Be sure to fully open the IN and OUT valves.
- The air filter in the compressed
air piping is blocked.
- Replace the filter element. (Refer to the operation
manual for used equipment).