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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.