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Troubleshooting
10
334662B
Troubleshooting
Program Settings
Recommended Timer Settings
NOTE:
These are recommended settings only. Experi-
ence with individual applications will determine timer
setting.
Description
Problem
Solution
Unit does not power on or display is
dim/unresponsive
Incorrect or loose wiring
Refer to installation instructions
beginning on page 4.
Input voltage is out of range
Confirm power source is between 9
and 30 VDC.
Tripped external fuse
Confirm that none of the devices or
wiring connected to the controller are
causing a short circuit connection.
Replace fuse. If fuse trips again, con-
tact Graco Customer Support.
Pump is not running during Pump ON
Incorrect or loose wiring
Confirm current is being delivered to
the pump during pump ON. Refer to
installation instructions, page 4. Ver-
ify that your machine has been wired
correctly.
Controller output is incorrect
Confirm output voltage (PUMP+)
from controller during pump ON is
correct (should be similar to input
voltage).
NOTE:
Measure at controller to
ensure there is not wiring issue caus-
ing the problem.
If controller output voltage is never
present, the device may need
replacement.
Air solenoid failure
Replace air solenoid.
Reservoir quickly and unexpectedly
runs out of grease
Test mode is engaged
Turn off test mode.
Description
Modes of Operation
Maximum / Minimum
TIME ON, page 7
MM:SS (00:01 - 59:59)
TIME OFF, page 8
HH:MM (00:01 - 99:59)
Timer Setting
Driving Conditions
1/2 or 1 hr
Off Highway
1.5 or 2 hr
Start and stop city, heavy salt, snow
and ice, rough pavement, wet climate,
heavy loads, dusty roads.
3 hr
Normal city or highway driving, normal
climate, moderate loads.