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Troubleshooting
62 332305B
Troubleshooting
Problem Cause Solution
Unit does not power on
Incorrect/loose wiring Refer to Installation instructions,
page 8.
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 pumping
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.
Can’t set desired ON/OFF times
Maximum duty cycle is 33% (2 min-
utes OFF for each minute ON)
Adhere to allowable duty cycle. Con-
tact Graco Customer Support if other
duty cycles are required for applica-
tion.
Unit is not operating based on the
time that was programmed
Time entered was misinterpreted as
MM:SS instead of HH:MM (or visa
versa)
Verify the unit was programmed as
intended, referencing programming
instructions. Note the dot designation
for hours, minutes, seconds on the
top row of the display.
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 controller lights and 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 Loading
Grease instructions, page 24. 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.
Dim display, unit is not operating
Tripped internal, resettable fuse due
to internal component failure or sen-
sor short circuit condition
Verify sensor and manual run inputs
have not created a short circuit condi-
tion. Cycle power.
Unit indicates a cycle or pressure
alarm before the lubrication cycle
could complete
The ON Time was not entered cor-
rectly
Refer to programming ON Time,
pages 31 and 52.