Pc Board Diagnostics - Graco LineLazer IV 200HS Repair And Parts List

D No display does not mean the sprayer is not pres-
surized.
Digital Display Messages
DISPLAY
No Display Sprayer may be pressurized.
Sprayer may be pressurized.
Sprayer is pressurized. Power is ap-
psi
plied. (Pressure varies with tip size and
bar
pressure control setting.)
MPa
Engine and system continue to run.
Engine and system continue to run.
After a fault, follow these steps to restart sprayer:
1. Correct fault condition
2. Turn sprayer OFF
3. Turn sprayer ON
14 311021

PC Board Diagnostics

SPRAYER
OPERATION
INDICATION
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.
ACTION
Check power source. Relieve
pressure before repair or dis-
assembly. Verify display is
connected.
Increase pressure as needed
Spray
Remove any filter clogs or
flow obstructions.
Check transducer connections
and wire. Replace transducer
or control board, if necessary.