Product Manual

Troubleshooting
28 3A7656A
Problem What to Check How to check
Sprayer does not shut off
AND
Control board status light blinks
2 times repeatedly
Control board.
Replace control board. See Parts,
page 32.
Sprayer does not run at all
AND
Control board status light blinks
2 times repeatedly
Check transducer or
transducer connections
Make sure there is no pressure in
the system (see
Pressure Relief
Procedure, page 11). Check fluid
path for clogs, such as clogged Inlet
Strainer.
Use airless spray hose with no metal
braid. A small hose or metal braid
hose may result in high-pressure
spikes.
Turn ON/OFF Switch OFF and
disconnect power to sprayer.
Check transducer and connections
to control board.
Disconnect transducer from control
board socket. Check that transducer
and control board contacts are clean
and secure.
Reconnect transducer to control
board socket. Connect power, turn
ON/OFF Switch ON and control
knob 1/2
turn clockwise. If sprayer
does not run properly, turn ON/OFF
Switch OFF and replace Control
assembly.
See Parts, page 32.
Sprayer does not run at all
AND
Control board status light blinks
3 times repeatedly
Check transducer or
transducer connections
(control board is not detecting
a pressure signal).
Turn ON/OFF Switch OFF and
disconnect power to sprayer.
Check transducer and connections
to control board.
Disconnect transducer from control
board socket. Check to see if
transducer and control board
contacts are clean and secure.
Reconnect transducer to control
board socket. Connect power, turn
ON/OFF Switch ON and control
knob to
1/2 turn clockwise. If sprayer
does not run, turn ON/OFF Switch
OFF and replace Control assembly.
See Parts, page 32.