Troubleshooting
32
312649E
Electrical
DIGITAL
DISPLAY
CONTROL BOARD
STATUS LIGHT
INDICATION
WHAT TO DO
Displays high
pressure when
prime valve is
open and there
is no pressure
in sprayer
-
Improper pressure
signal to control.
Open prime valve. Connect a known good transducer in
place of the sprayer transducer. Set sprayer ON. Replace
transducer If sprayer runs. Replace control board If sprayer
does not run.
E=02
Blinks 2 x repeatedly
Control board is
receiving excessive
pressure signal
from transducer.
Transducer may be
damaged or fluid flow
path may be clogged.
1
Check fluid path for clogs, such as a clogged filter.
2
Open prime valve.
3
Use airless paint spray hose with no metal braid,
3/8 in. x 50 ft minimum. Smaller hose or metal braid
hose may result in high-pressure spikes.
4
Replace transducer if fluid path is not clogged and
proper hose is used.
E=03
Blinks 3 x repeatedly
Transducer or trans-
ducer connection
error.
1
Check transducer connection.
2
Disconnect and reconnect transducer plug to ensure
good connection with control board socket. Check that
transducer contacts are ok.
3
Open prime valve. Connect a known good transducer
in place of the sprayer transducer. Set sprayer ON.
Replace transducer If sprayer runs. Replace control
board If sprayer does not run.
E=04
Blinks 4x repeatedly
High Line Voltage
> 255 VAC
Ensure line voltage is below 255 VAC.
