Graco Ultra Max 695 Manual page 18

Digital Display Messages (Not available on all sprayers)
No display does not mean that sprayer is not pressurized. Relieve pressure before repair; page 4.
DISPLAY*
No Display Sprayer may be pressurized.
Sprayer is pressurized. Power is applied.
psi
(Pressure varies with tip size and pressure
bar
control setting.)
MPa
1. Sprayer stops. Power is applied.
2. Sprayer stops. Power is applied.
3. Sprayer continues to run
Sprayer stops. Power is applied.
Sprayer stops. Power is applied.
Sprayer stops. Power is applied.
Sprayer stops. Power is applied.
Sprayer stops. Power is applied.
Sprayer stops. Power is applied.
Power is applied.
Sprayer may be pressurized.
*Error codes also appear on control board as a blink-
ing red LED. LED is an alternate to display.
Electric shock hazard; page 4.
1. Remove four screws (60) and cover (49).
2. Turn sprayer ON. Count LED blinks. Blink count is
the same as error code (E=0X) in preceding
Digital Display Messages table.
3. Follow instructions in table.
18
309251
Pressure Control Repair
SPRAYER
OPERATION
INDICATION
Loss of power or display not
connected
Normal operation
1. Exceeded pressure limit of
4500 psi. Sprayer is pres-
surized.
2. Sprayer is not pressurized
3. Pressure rise nears 4500 psi
Pressure transducer faulty,
bad connection or broken
wire.
Line voltage too high
Too much motor current
No operation, motor over
heated or unplugged
Pressure greater than
2000 psi (138 bar, 14 MPa)
while in Flush Timer Mode
Low line voltage
Digital display switches are
not set
Pressure less than
200 psi (14 bar, 1.4 MPa)
After a fault, do following steps to restart sprayer:
1. Correct fault condition
2. Turn sprayer OFF
3. Turn sprayer ON
ACTION
Check power source. Relieve
pressure before repair or disas-
sembly. Verify display is con-
nected.
Spray
1. Remove any filter clogs or flow
obstructions. Lock gun trigger
open if using AutoClean valve.
2. Replace transducer
3. Replace control board
Check transducer connections
and wire. Replace transducer or
control board, if necessary.
Check for voltage supply problem
Check for locked rotor, pump ob-
struction, damaged drive train,
shorted wiring or motor. Repair or
replace failed parts.
Allow sprayer to cool. Correct
cause of overheating. Verify mo-
tor is plugged into motor control
board
Make sure spray gun is triggered
and prime valve is open when us-
ing AutoClean
Check for voltage supply problem
Set switches on back of digital
display to appropriate settings.
Fig. 13, page 16.
Increase pressure as needed