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Troubleshooting
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Troubleshooting
Before starting any troubleshooting procedures:
1. Relieve pressure (refer to Pressure Relief
Procedure Section).
2. Disconnect AC power to the machine.
3. Allow the machine to cool, if the machine has a heat
control option.
Try the recommended solutions in the order given for
the each problem to avoid unnecessary repairs. Also
verify all circuit breakers, switches, and controls are
properly set and wiring is correct before assuming there
is a problem.
PROBLEM CAUSE SOLUTION
HMI Display Completely Dark
No Power Verify rear AC Power switch is ON.
Fuse Blown Replace Machine fuses (Refer to “Miscellaneous
Mechanical Assemblies” Section).
Loose connection Tighten 5 pin cable on HMI.
Bad HMI Replace HMI
No or incorrect amount of
material dispensed from either
side
Ball Valve Closed Open Tank Ball Valve (if installed).
Tank empty Fill tank with material
Tank Clogged Verify no obstruction in the tank
Air in material Prime the machine until the air is removed.
Check valve malfunction Remove, clean or replace check valve.
Piston worn or broken Remove and replace piston if worn.
Piston stalled (E21 Error)
Input Air Reduced or
removed
Re-connect input air line to machine. Increase
air pressure regulator adjustment.
Mixer blocked Replace static mixer. Incorporate or decrease
purge time amount to prevent mixer blockage.
ODV adjustment too late Re-adjust the ODV setting to occur sooner (C3
screen section).
Blocked Check valve Remove check valve, clean and replace.
Air Cylinder Failure Remove air cylinder and re-install cylinder kit
items if necessary.
Significant material leaking
from pump rear seal
Pump Shaft worn Remove pump shaft assembly, and re-install rear
pump re-built kit.
Material dispensed not correct
weight
Specific gravity of 1 or more
of the 2 materials has
changed since calibration.
Mix materials in tanks, dispense another shot,
then re-weigh. Re-calibrate if necessary (C4
section).
Machine Air pressure has
changed since calibration.
Re-adjust air pressure regulator to value used
when machine was calibrated, or re-calibrate (C4
section). Turn ON or decrease
% level.
Not enough material in 1 or
more tanks
Check tank levels, and fill and prime if
necessary.
Mixer has slight obstruction Replace static mixer. Re-prime machine.
Check valve malfunction Remove check valve(s), clean or replace if
necessary.
Piston worn or broken Remove and replace piston(s) if necessary.
Machine dispensing off ratio
One tank is empty Check tank levels. Add material if necessary.
Tank Ball valve Closed Open tank ball valve. Re-prime machine.
Machine out of phase Re-phase machine (C2 section).
Check valve malfunction Remove check valve(s), clean or replace if
necessary.
Piston worn or broken Remove and replace piston(s) if necessary.
Pumps drawing material back
from valve hose
Check valve stuck open Remove check valve(s), clean or replace if
necessary.