Troubleshooting
332298J
39
Troubleshooting
on page 17 before checking
or repairing the equipment.
Problem
Cause
Solution
Unit does not power on
Incorrect/loose wiring
Refer to Installation instructions, page
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 lubri
-
cant, rated for environmental condi
-
tions 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 lubricant
Add grease following Loading Grease
instructions, page 18. Ensure air is
purged.
Pump takes several minutes before it
begins pumping at the highest pump
volume setting (no stroke adjust spac
-
ers installed)
Pumping non-cold weather lubricant in
cold weather -13°F (-25°C)
Add 1 stroke adjust spacer and adjust
lube cycle time to accommodate the
difference in pump volume per stroke.
Dim display, unit is not operating
Tripped internal, resettable fuse due to
internal component failure or sensor
short circuit condition
Verify sensor and manual run inputs
have not created a short circuit condi
-
tion. Cycle power.