Troubleshooting
334641E 27
Problem What to Check How to check
Sprayer does not run at all
AND
Control board status light never lights
See flow chart, page 31.
Sprayer does not shut off
AND
Control board status light blinks 2
times repeatedly
Control board. Replace control board.
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 9). Check fluid path
for clogs, such as clogged filter.
Use airless paint 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 go to next step.
Install new transducer. Connect
power, turn ON/OFF switch ON and
control knob 1/2 turn clockwise.
Replace control board if sprayer does
not run properly.
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