Troubleshooting - Graco 16F887 Operation Manual

Troubleshooting

Problem
Sprayer makes no sound when
trigger is pulled
Sprayer makes sound but no material is
sprayed when trigger is pulled
3A1698G
Check everything in this Troubleshooting Table before
you bring the sprayer to an authorized service center.
Cause
Trigger is locked.
Status Indicator Light is solid RED when
triggering, indicating that the battery
charge is low, or the battery is too cold.
Status Indicator Light is flashing RED
when triggering, indicating that the bat-
tery is too hot to operate.
Status Indicator Light does not light
when sprayer is triggered. Battery is not
installed or is damaged.
Sprayer is not primed.
Prime/relief valve is in UP position.
Suction Tube is missing or improperly
installed.
Suction Tube screen or vent hole is
clogged.
Suction Tube o-rings are damaged or
missing.
Tip is not in SPRAY position.
Tip is clogged.
Tip filter is clogged.
Pressure control is too low or Hi/Lo
switch is in Lo range.
Sprayer has been tilted too far and suc-
tion tube has lost contact with material.
No or low material in cup.
Inlet valve is stuck from material
residue left in sprayer.
Pump is clogged, frozen, or has debris
inside.
Material is leaking from hole in front of
sprayer.
Troubleshooting
Solution
Disengage trigger lock. See page 10.
Replace with charged battery and place
old battery in charger, or allow battery to
warm up.
Allow battery to cool.
Install battery or replace.
Prime the pump. See Starting a new
Job (or Refilling the Cup), page 14. If
sprayer fails to prime, follow Alternate
Priming Method (page 24).
Put valve DOWN to spray position.
Make sure Suction Tube is properly
installed.
See Shutdown and Cleaning, page
17.
Replace Suction Tube o-rings.
Turn tip to SPRAY position.
See Unclogging Tip/Guard
Assembly, page 16.
Remove and clean tip filter. See
Unclogging Tip/Guard Assembly,
page 16.
Turn pressure control up or shift Hi/Lo
switch to Hi range.
Make sure cup is filled with material.
Rotate suction tube, page 12. Do not tilt
the cup too far. Prime the pump. See
Starting a new Job (or Refilling the
Cup), page 14.
Refill cup with material and prime the
pump.
Use a pencil or thin rod to lightly push
on inlet valve to make sure it moves up
and down freely. See Inlet Valve
Removal/Service, page 25.
See Outlet Valve Repair, page 26 and
Inlet Valve Removal/Service, page 25.
Sprayer has reached maximum life.
Replace sprayer.
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