23
Troubleshooting Guide
The following chart listing “Problem”, “Cause” and “Solution” should be consulted before
requesting service.
When in doubt, please contact HERO EUROPE S.r.l.’s service department before any
attempts are made to repair the equipment.
PROBLEM
CAUSE
SOLUTION
Colourant leaks from the flange
connecting the pump motor to the
canister
Broken pump
Canister replacement
Colourant dripping from the
nozzle
• Air in the circuit
• The pull-back function
parameters are not set
correctly
• Purge the circuit until you
see a regular colorant
flow, free from air bubbles
• Program the pull-back
function parameters
correctly
When dispensing ends the
colorant goes back towards the
canister through the nozzle thus
emptying the tubing
Worn pump
Canister replacement
During operation, the circuit
dispenses in a noisy, irregular
way
• The cable connecting the
electronic card and the
pump motor is not
plugged in correctly
• The cable connecting the
electronic card and the
pump motor is damaged
• Motor has broken down
• Electronic card is not
working
• Stalled pump
• Check that the cable
between the electronic
card and the motor is
properly connected on
both ends
• Replace the cable
connecting the electronic
card and the motor
• Replace the canister
• Replace the electronic
card
• Start the pump by hand
slowly until it unblocks.
Increase the purging
frequency and if
necessary, thin the
colourant
The sensors don’t work
and/or
The pump motors don’t work
and/or
The mixing motors don’t work
The connection between the PC
and the machine is no longer
functioning
• No power
• The machine’s power
cable is disconnected
• The power cable for the
electronic card is not
plugged in
• A fuse has blown
• Verify that the unit has
power
• Connect the machine’s
power cable to the power
outlet
• Make sure the power
cable to the electronic
card is plugged in
• Replace the fuse
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