Troubleshooting
313997A
75
Troubleshooting
Before performing any troubleshooting procedure:
1.
Perform Pressure Relief Procedure on page 66.
2.
Turn main power OFF.
3.
Allow equipment to cool.
Try the recommended solutions in the order given for
each problem, to avoid unnecessary repairs. Also,
determine that all circuit breakers, switches, and con-
trols are properly set and wiring is correct before assum-
ing there is a problem.
Common Problems
Problem
Cause
Solution
General
Display Module completely
dark
No Power
Verify AC Power switch is ON
Thrown Breaker
Check Machines Breakers and Reset
Loose Connection
Tighten 5-pin cable on Advanced Display Module
Bad Display Module
Replace Advanced Display Module
No or incorrect amount of
material dispensed from
either side
Ball Valve closed (if Installed)
Open tank ball valve.
Tank Empty
Add fluid
Tank Clogged
Clean tank
Air In Material
Prime the machine
Significant material leaking
from pump seal
Pump shaft worn and/or shaft seal
worn
Remove pump shaft assembly and reinstall read
pump rebuild kit
Material dispensed not cor-
rect weight
Specific gravity of one or more of the
two materials has changed since cali-
bration
Run 3 point calibration
Check valve malfunction
Remove check valve; clean or replace as necessary
Piston worn or broken
Replace Piston
A (Red) and B (Blue) Primary Heaters
Control of primary heat is
abnormal; high temperature
overshoots
Dirty RTD connection
Examine connection of RTD to long green plug on
heater control board. Unplug and re-plug RTD wires,
cleaning off any debris. Unplug and re-plug long
green connector.
RTD not contacting heater element
Loosen ferrule nut, push in RTD so tip contact heater
element. Holding RTD tip against heater element,
tighten ferrule nut 1/4 turn past tight.
Failed heater element
Replace
Signal failure from RTD
Check connections
RTD wired incorrectly
Check connections. Power up zones one at a time
and verify that temperature for each zone rises.
Hose Heat System
Hose heats but heats slower
than usual or it does not
reach temperature
Ambient temperature is too cold
Use auxiliary hose system.
FTS failed or not installed correctly
Check FTS
Low supply voltage
Verify line voltage. Low line voltage significantly
reduces power available to hose heat system, affect-
ing longer hose lengths.