Troubleshooting
30
3A8179C
Pump is difficult to prime
Air in pump or hose.
Check and tighten all fluid
connections. Cycle pump as
slowly as possible during
priming.
Intake valve is leaking.
Clean intake valve. Be sure
ball seat is not nicked or worn
and that ball seats well.
Reassemble valve.
Pump packings are worn.
Replace pump packings. See
pump manual.
Paint is too thick.
Thin the paint according to
supplier recommendations.
Sprayer operates for 5 to 10
minutes then stops
Pump packing nut too tight.
When pump packing nut is too
tight the packings on the pump
rod restrict pump action and
overloads the motor.
Loosen pump packing nut.
Check for leaks around throat.
If necessary, replace pump
packings. See Pump manual.
Battery has insufficient charge. Charge battery.
Sprayer makes no sound when
pressure control is ON and
ON/OFF switch is ON
(illuminated)
ON/OFF switch light blinks two
times when pressure control is
ON. Indicates incorrect
voltage.
Replace battery with a charged
battery.
Battery has reached end of life.
Replace the battery.
ON/OFF switch light blinks
three times when pressure
control is ON. Indicates battery
temperature is too hot or too
cold.
Allow battery to cool down or
warm up to room temperature.
ON/OFF switch light blinks four
times when pressure control is
ON. Indicates locked rotor
condition.
Replace pump and/or motor
assembly.
ON/OFF switch light blinks five
times when pressure control is
ON. Indicates motor
temperature is too hot.
Allow motor to cool down to
room temperature.
ON/OFF switch does not
illuminate when pressed.
Indicates battery is not
installed, has insufficient
charge, or is damaged.
Install battery correctly, ensure
battery is fully charged, or
replace battery.
Control board is damaged.
Replace control board.
Power switch is damaged.
Replace power switch.
ON/OFF switch is constantly
illuminated (does not turn off).
Control board is damaged.
Replace control board.
Problem
What to Check
If check is OK, go to next
check
What to Do
When check is not OK,
refer to this column
