V 03/13
OptiSpray DPP01 Troubleshooting • 29
Troubleshooting
General information
Fault Causes Troubleshooting
Power display does
not illuminate
No operating voltage Check the power supply
(100-240 VAC)
Check the power switch
Fuse is defective Replace the defective
fuse
Dense phase pump
does not convey
No control signal Check the control cable,
check the autonomic
pumping with test pro-
gram 3 - so it can be
determined, if the con-
trol or the dense phase
pump is defective
Compressed air supply
failed or pressure too
low
Check the compressed
air source (ensure an air
pressure of 7-10 bar),
check the pressure
gauge of the local pres-
sure regulator
No transport air present Check the hose connec-
tion of the control unit to
the dense phase pump
Check the compressed
air supply
No fluidization in the
suction zone
Ensure the fluidization
Service life of the pinch
valve runs off (defective)
Change the pinch valve,
check the pneumatic
system for defects and
replace, if necessary
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