Troubleshooting
38
3A6673B
Troubleshooting
1.
Perform pressure relief procedure
,
page 10, before you check or repair the
metered dispense valve.
2.
Verify that the pump, other valves, and
controls are operating properly.
Problem
Cause
Solution
Battery dead icon is present.
Batteries are low.
Replace batteries, page 35.
Display does not activate
Batteries are dead.
Replace batteries, page 35.
Electronic control is
malfunctioning.
Replace the electronic bezel
assembly. Contact your
Graco distributor for
assistance ordering this
part.
Slow or no fluid flow
Filter is clogged.
Relieve pressure
, page 10.
Clean or replace filter.
If the problem remains,
contact your Graco
distributor for repair or
replacement.
Pump pressure is low.
Increase pump pressure.
Twist lock nozzle not fully
open.
Aim nozzle into bucket or
rag. Fully open nozzle.
Do not trigger metered
dispense valve when
nozzle is closed
. If you do
accidentally trigger the
metered dispense valve with
the nozzle closed, point
nozzle into a waste bucket
and open the nozzle to
relieve pressure and expel
built up fluid.
Shut-off valve is not fully
open.
Fully open shut-off valve.
Foreign material is jammed
in the metered dispense
valve housing.
Contact your Graco
distributor for repair or
replacement.
Displayed dispensed
amount is not accurate
Unit needs to be calibrated
for the fluid that is being
dispensed.
Calibrate the metered
dispense valve for the fluid
that is being dispensed.
