Troubleshooting
30 332291P
Troubleshooting
Problem Cause Solution
Unit does not power on
Incorrect/loose wiring Refer to Installation instructions,
page 9.
Unit does not power on (DC models
only)
Tripped external fuse due to internal
component failure
Contact Graco Customer Service.
Tripped external fuse due to pump-
ing non-cold weather lubricant in
cold weather -13°F (-25°C)
Replace lubricant with pumpable
lubricant, rated for environmental
conditions and application.
Replace fuse.
Unit does not power on (AC models
only)
Tripped internal power supply fuse
due to power supply failure
Contact Graco Customer Service.
Lubricant leaks past seal located on
the bottom of the reservoir
Reservoir retaining tabs are cracked
or broken
Replace reservoir.
Reservoir is being pressurized during
filling
Ensure vent hole is not plugged.
If problem persists, contact Graco
Customer Service or your local
Graco distributor for assistance.
Unit not pumping during ON cycle,
but external controller functions
Failed motor Replace unit.
Follower plate is not going down
Air is trapped in the reservoir
between the follower plate and lubri-
cant
Add grease following Load Pump
with Grease instructions, page 20.
Ensure air is purged.
Pump takes several minutes before it
begins pumping at the highest pump
volume setting (no stroke adjust
spacers installed)
Pumping non-cold weather lubricant
in cold weather -13°F (-25°C)
Add 1 stroke adjust spacer and
adjust lube cycle time to accommo-
date the difference in pump volume
per stroke.
In an Injector System without sensor
feedback, unit does not vent prop-
erly
Vent valve time needs to be config-
ured
Adjust external vent valve control
time.
After wiring and installing equipment,
pump is not working (DC models
only)
Pump wired backwards Rewire pump. See Wire and Instal-
lation Diagrams, page 14
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