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Troubleshooting
16 309497L
Troubleshooting
Relieve pressure before you check or repair the meter.
Follow the Pressure Relief Procedure, page 8.
Be sure all other valves and controls and the pump are
operating properly. If using the chart below to trouble-
shoot is not successful, contact your Graco distributor
for repairs or component replacement.
WARNING
Read warnings, page 3.
Problem Cause Solution
Battery display
bars do not appear.
Battery has low charge. Recharge battery.
Meter display does
not activate.
Battery is dead. Attempt to recharge a dead battery using procedures
outlined in the Battery Charger Instruction Manual
(309502). If procedure does not restore a normal
charge, replace the battery.
Battery inserted too soon. Wait 30 seconds and reinstall fully charged battery.
Cable connections are loose or dis-
connected.
Ensure cables are properly connected. See page 22.
Electronic display is damaged.
Replace with Bezel Repair Kit (246438). See page 33.
Slow or no fluid
flow from meter.
CleanLine filter system is clogged. Clean or replace the CleanLine filter. Refer to the Clean-
Line Filter System Instruction Manual (310652).
Meter is not in dispense mode. See dispense options, page 14.
Matrix meter filter is clogged. Clean or replace the Matrix meter filter element. See
Cleaning or Replacing the FIlter page 21.
Pump pressure is low. Turn up air pressure to the pump. SeeTechnical Speci-
fications page 35.
Pump or reel fluid shut-off valve is
not fully open.
Fully open pump or reel fluid shut-off valve.
Meter hydraulic valve is not function-
ing.
If meter bars are lit indicating flow, the nozzle tip is fully
open, and the fluid flow has been verified to the meter
valve inlet, then the meter hydraulic valve has failed and
the meter should be replaced.
Electronic board connections may be
loose or disconnected.
Verify that all connectors are connected or re-seated to
the board connections. See page 22.
Trigger membrane switch is dam-
aged - flow bars DO NOT show on
the meter display when the trigger IS
actuated.
Replace the trigger membrane using the Trigger Repair
Kit (246439 N. A., 249883 Australia). See page 33.
Meter valve is blocked with debris -
flow bars DO show on the meter dis-
play when trigger IS actuated.
Flush the valve with mineral spirits at high pressure and
flow. Warning: do not exceed the maximum working
pressure of the meter (1500psi - 103 bar).
Quick close nozzle is closed. Open nozzle, see F
IG. 21 on page 15.
A hydraulic quick disconnect was
used to connect the meter to the dis-
pense hose, allowing debris to clog
meter.
Quick disconnects should not be used with Matrix prod-
uct, doing so voids the warranty.