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IDX-OM-Y002
Chapter 6
Troubleshooting
6.1
Troubleshooting
IDF190D/240D Series
6-2
Problem
Possible causes
Action
Compressor stops
with the operation
LED ON with no
cooling water flow.
Water-cooled condenser is
contaminated.
- Clean the air-cooled condenser.
Facility water supply decreased
because foreign matter has
accumulated in the strainer.
- Inspect the strainer once a month. Remove foreign
matter when it has accumulated.
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.
Compressor stops
with the operation
LED ON with
cooling water flow.
Water-cooled condenser is
contaminated.
- Clean the air-cooled condenser.
Facility water temperature high.
- Decrease the facility water temperature. (Check and
adjust the cooling tower)
Facility water supply decreased
because foreign matter has
accumulated in the strainer.
- Inspect the strainer once a month. Remove foreign
matter when it has accumulated.
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).