User's Manual

Troubleshooting
3A2797G 49
Troubleshooting
Before performing any troubleshooting procedure:
1. Perform Pressure Relief Procedure on page 44.
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.
Light Tower (Optional)
Errors include advisories, deviations, or alarms, so
green will only be on when none of these occur. A yellow
light can be on at the same time as red (flashing or solid
on) when an advisory exists at the same time as a devi-
ation or alarm.
Signal Description
Green on only System is powered up and there are
no error conditions present
Yellow on An advisory exists
Red flashing A deviation exists
Red on The system is shut down due to an
alarm occurring.
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 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 Unplug and re-plug RTD wires.
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 System
Material 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