-34-
No.PF
※※
-OMG0010-G
Troubleshooting
Troubleshooting
If an operation failure occurs with the product, use the table below to find out the cause of the problem.
If none of the countermeasures seem to be applicable, or a replacement product operates normally when
installed, the product may be faulty. A product can be damaged by the operating environment (system
configuration etc). If the product seems to be faulty, please contact SMC.
■
Cross-reference for troubleshooting
Fault
Probable cause
Recommended action
Dis
p
la
y
Display is OFF.
Wiring failure.
Correct the wiring.
Connector loose.
Check the connector.
The display is
unstable.
Foreign matter inside.
Install a filter or mist separator at IN side of product.
If there is foreign matter stuck to the mesh, remove it
completely, taking care not to damage the product.
Piping is connected in the wrong
direction.
Install with the mounting direction corresponding to
the flow direction (arrow indicated on the product).
Pulsation in the flow.
Change to a pump that has less pulsation. Install a
tank to reduce the pressure fluctuation. Change the
piping to elastic piping such as rubber tube.
Air leakage.
Check that seal tape has been applied correctly.
Reconnect the pipes with the specified tightening
torque.
The display is not
correct.
Foreign matter inside.
Install a filter or mist separator at IN side of product.
If there is foreign matter stuck to the mesh, remove it
completely, taking care not to damage the product.
Piping is connected in the wrong
direction.
Install with the mounting direction corresponding to
the flow direction (arrow indicated on the product).
An incorrect flow unit was
selected.
Select the appropriate flow unit.
Air leakage.
Check that seal tape has been applied correctly.
Reconnect the pipes with the specified tightening
torque.
The display flashes.
Accumulated flow has exceeded
the maximum value which can be
displayed at one time.
Change the display digits so that the maximum
accumulated flow value can be displayed (page
18
).
: Operate only the product with unit selection function
