TROUBLESHOOTING CHART
Contact HERO’s 24/7 Help Desk with any questions: 1-800-494-4376
Colorant leaking from the stepper
motor connected to the cartridge
pump
Colorant dripping from the nozzle
Aerated colorant
Dirty nozzle
Damaged nozzle tip
Pull-back feature not set correctly
Dispense colorant until you see a
regular colorant flow without air
Clean nozzle tips and sponge
Replace nozzle
Reprogram pull-back parameters
In software
While dispensing, the pump makes
an irregular pitch noise, sounding
louder than normal. Very little or no
colorant dispenses when pump
makes loud noise
Stuck or stalled pump
The connecting cable between
the PCB and the pump motor is
not properly connected
Damaged connecting cable
between the PCB and the pump
motor
Stepper motor malfunction
PCB is not working correctly
Colorant may be too thick. Move the
pump rotor by hand by turning the
bolt in the bottom center of the
stepper motor. Turn it clockwise
several times and try to run the pump
again by dispensing 5 oz of product.
Thin or replace the colorant if
necessary
Check that the connectors at both
ends of the cable are inserted
all the way
Replace the cable
Replace the pump cartridge
Replace the PCB
PC no longer recognizes the
dispenser and/or
No communication message
and/or
All of the agitation motors do not
work and/or
The laser aiming device does not
work and/or
The automatic nozzle cap does not
open and/or
None of the pump motors run
No AC power to the dispenser
No output from one or the other
power supplies
PCB is not working correctly
Check the dispenser’s power
source and switches, inc. emergency
switch and AC fuse on the rear panel
Unplug the dispenser and check
that all wiring is firmly connected
to all power supplies and the PCB.
Power up the dispenser and
carefully use a voltmeter to check
the input and output of each
power supply. Replace a power
supply with input but no output
Replace the PCB
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