Troubleshooting - Graco EVR Instructions Manual

Troubleshooting

NOTE: For Online help, visit http://help.graco.com for
causes and solutions to each error code.
Problem
General
Advanced Display Module
completely dark
No or incorrect amount of material
dispensed from either side
Significant material leaking from
pump seal
Material dispensed incorrect weight
The wrong pressure is displayed on
the ADM/CGM
3A8565C
1. Follow Pressure Relief Procedure, page 17.
2. Check all possible problems and causes before
disassembling.
3. Turn the Power Disconnect Switch (C) OFF.
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
assuming there is a problem.
Cause
No power
Loose connection
Bad Advanced Display Module
Ball Valve closed (if Installed)
Supply empty
Air in material
Pump shaft worn and/or shaft seal
worn
Specific gravity of one or more of
the two materials has changed
since setup
Check valve malfunction
Piston worn or broken
Incorrect pressure transducer is
being used
Bad pressure transducer
Troubleshooting
Solution
Verify the Power Disconnect Switch
(C) is ON
Tighten 5-pin cable on the
Advanced Display Module
Replace the Advanced Display
Module
Open supply ball valve.
Add fluid
Prime the machine
Remove the pump shaft assembly
and reinstall read pump rebuild kit
Check the specific gravity and
re-enter in the setup screens
Remove the check valve; clean or
replace as necessary
Replace the piston
Verify that the correct pressure
transducer is being used. Change if
necessary.
25B128: Use 15M669 pressure
transducer
25U084: Use 16P289 pressure
transducer
Replace the pressure transducer
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