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Digital Display Messages
DISPLAY*
SPRAYER OPERA-
No Display
Sprayer may be
pressurized.
Sprayer may be
pressurized.
Sprayer is pressurized.
Power is applied.
(Pressure varies with
tip size and pressure
control setting).
Sprayer stops. Engine
is running.
Sprayer stops. Engine
is running.
Sprayer stops. Engine
is running.
Sprayer stops. Engine
is running.
(with constant
green LED)
Sprayer stops. Engine
is running.
* Error codes also appear on control board as a blinking red
LED. LED is an alternate to digital messages.
1.
Remove two screws (71) and swing down cover (130).
2.
Start engine. Blink count is the same as error code(E=0X).
334121B
INDICATION
TION
Loss of power or display
not connected.
Pressure less than
200 psi (14 bar, 1.4 MPa).
Normal operation.
Exceeded pressure limit.
Pressure transducer faulty,
bad connection or broken
wire.
High clutch current.
Loss of paint to pump or
severe pressure loss.
Pressure greater than
2000 psi (138 bar, 14 MPa)
while in Flush Timer Mode.
•
Digital messages are not available on all sprayers
•
Blinking LED total count equals digital error code
i.e., two blinks is the same as E=02
Check power source. Relieve pressure before repair
or disassembly. Verify display is connected.
Increase pressure as needed.
Spray
1.
Check fluid path for clogs, such as clogged filter.
2.
Open prime valve and gun if running AutoClean.
3.
Use Graco paint hose, 1/4 in. x 50 ft minimum.
Smaller hose or metal braid hose may result in
pressure spikes.
4.
Replace transducer if fluid path is not clogged
and proper hose is used.
1.
Check transducer connection.
2.
Disconnect and reconnect transducer plug to
ensure good connection with control board
socket.
3.
Open prime valve. Replace sprayer transducer
with known good transducer and run sprayer.
Replace transducer if sprayer runs or control
board if sprayer does not run.
1.
Check wiring connections.
Measure: 1.2 + 0.2 across clutch field at 70°F
2.
(21°C).
3.
Replace clutch field assembly.
1.
Check for empty paint condition, clogged inlet
strainer, failed pump or severe leak.
2.
Reduce pressure and turn pump switch OFF
and ON to restart pump.
3.
WatchDog function can be deactivated by
turning WatchDog switch OFF.
1.
Open prime valve and gun.
2.
Verify no flow obstructions or clogged filter.
After a fault, follow these steps to restart sprayer:
1.
Correct fault condition
2.
Turn sprayer OFF
3.
Turn sprayer ON
Digital Display Messages
ACTION
19
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