Troubleshooting
Symptom
Potential causes
Solution
No abrasive delivery, but
there is sufficient
abrasive in the ADS for
proper operation.
The supply connection is
interuppted.
Inspect all supply connections
(air and electrical).
The silo or vessel low
abrasive switch is
malfuntioning.
Test the function of the silo or
the vessel low abrasive
switch. Replace if necessary.
Operating pressure set too
low.
Increase the operating
pressure while not going
below a 2 bar (30 psi)
difference between the supply
pressure and the operating
pressure.
No abrasive delivery, and
either the yellow warning
indicator is not on or the
audio signal is not on.
Either the yellow warning
indicator or the audio signal
is defective.
Test the function of the yellow
warning indicator and replace
the bulb if necessary.
Test the function of the audio
signal and replace if
necessary.
If the container is empty and
both indicators are not
working, contact Flow
Technical Service.
The ADS continuously
vents.
The venting valve is
malfunctioning.
Clean the valve or replace if
necessary.
Air leaks from the silo.
The operating pressure is
set too high
The pinch valve seal in PV1
is defective
Limit the operating pressure
on the pressure regulating
valve to a minimum of 2 bar
(30 psi) below the supply
pressure.
Replace the pinch valve seal.
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