Troubleshooting
334730F
31
Sprayer does not run at all
AND
Display shows E=02
OR
Control board status light blinks
2 times repeatedly
Check transducer or transducer
connections
Make sure there is no pressure
in the system (see
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.
Set SELECTOR switch to
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,
set SELECTOR switch to
AIRLESS
and control knob
1/2 turn clockwise. If sprayer
does not run properly, set
SELECTOR switch to
OFF
and
go to next step.
Install new transducer. Connect
power, set SELECTOR switch to
AIRLESS
and control knob 1/2
turn clockwise. Replace control
board if sprayer does not run
properly.
Sprayer does not run at all
AND
Display shows E=03
OR
Control board status light blinks
3 times repeatedly
Check transducer or transducer
connections (control board is not
detecting a pressure signal).
Set SELECTOR switch to
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,
set SELECTOR switch to
AIRLESS
and control knob
to 1/2 turn clockwise. If sprayer
does not run, set SELECTOR
switch to
OFF
and go to next
step.
Connect a confirmed working
transducer to control board
socket.
Set SELECTOR switch to
AIRLESS
and control knob to
1/2 turn clockwise. If sprayer
runs, install new transducer.
Replace control board if sprayer
does not run.
Problem
What to Check
How to check