Digital Display Messages - Graco 278675 Operation

Digital Display Messages

DISPLAY* SPRAYER OPERATION
No Display Sprayer may be
pressurized
Sprayer may be
pressurized
ti6314a
BASE Displays installed pump
or when engine is started
TOP
OFF Displays flow control
FLOW 1 setting in Base Coat mode
FLOW 2 when pump control setting
or is changed
FLOW 3
Sprayer is pressurized.
psi
Power is applied. (Pressure
bar
varies with tip size and
MPa
pressure control setting.)
ti6315a
Top Coat Only: Sprayer
stops. Engine is running.
ti6316a
Sprayer stops. Engine is
running.
ti6317a
Sprayer stops. Engine is
running.
ti6318a
Base Coat Only: 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).
313888F
INDICATION
Loss of power or
display not connected
Pressure less than
60 psi (4 bar, 0.4 MPa)
Normal operation
Normal operation
(with Base Coat pump)
Normal operation
Pressure greater than
4500 psi (310 bar, 31
MPa)
Pressure transducer
faulty, bad connection
or broken wire
High clutch current
Pressure greater than
1000 psi (69 bar, 6.9
MPa)
After a fault, follow these steps to restart sprayer:
1 Correct fault condition.
2 Turn sprayer OFF.
3 Turn sprayer ON.
(E02 and E06 errors will self-correct when system is reduced)
ACTION
Check power source. Relieve pressure before repair
or disassembly. Verify display is connected.
Increase pressure as needed
Spray
Spray
Spray
1 Check fluid path for clogs.
2 Use Graco paint hose, 3/8 in. x 50 ft minimum.
Smaller hose or metal braid hose may result in
pressure spikes.
3 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.
2 Measure: 1.7 + 0.2Ω across clutch field at 70°F.
3 Replace clutch field assembly.
1 Open prime valve and gun.
2 Verify no flow obstructions. Use Graco texture
hoses 3/4 in. x 50 ft minimum.
3 Replace transducer if fluid path is not clogged and
proper hose is used.
Digital Display Messages
June 2019