Graco 395 233960 Repair Manual page 19

Digital Display Messages
No display does not mean that sprayer is not pressurized. Relieve pressure before repair; page 5.
DISPLAY
SPRAYER OPERATION
No Display
Sprayer stops. Power is not applied.
Sprayer may be pressurized.
Sprayer is pressurized. Power is
psi
bar applied. (Pressure varies with tip
MPa
size and pressure control setting.)
Sprayer may continue to run.
Power is applied.
Sprayer stops. Power is applied.
Sprayer stops. Power is applied.
Sprayer does not start or stops.
Power is applied.
Sprayer stops. Power is applied.
Power is applied.
Sprayer stops. Power is applied.
Pressure Control Repair
INDICATION
Loss of power Check power source. Relieve pres-
sure before repair or disassembly.
Normal operation Spray
Pressure greater than Replace pressure control board or
4500 psi (310 bar, 31 pressure transducer.
MPa) or pressure trans-
ducer faulty
Pressure transducer Check transducer connection.
faulty, bad connection Open drain valve. Substitute new
or broken wire. transducer for transducer in spray-
er. If sprayer runs, replace trans-
ducer.
Line voltage too high Check for voltage supply problem
Motor fault Check for locked rotor, shorted wir-
ing or disconnected motor. Repair
or replace failed parts.
Motor it too hot. Allow sprayer to cool. If sprayer
runs correctly when cool, check
motor fan function and air fow.
Keep sprayer in cool location. If
sprayer does not run when cool
and continues to blink 6 times, re-
place motor.
Increase pressure if desired. Drain
Pressure less than 200
valve may be open.
psi (14 bar, 1.4 MPa)
Empty paint pail. Loss Refill paint pail. Check for leaks or
of pressure. clogged pump inlet. Repeat Start-
up procedure.
ACTION
309674 19