Graco 16W883 Manual Do Utilizador

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

* 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).

After a fault, follow these steps to restart sprayer:
1.

Correct fault condition

2.

Turn sprayer OFF

3.

Turn sprayer ON

No Display

Sprayer may be 

pressurized.

Loss of power or display 

not connected.

Check power source. Relieve pressure before repair 

or disassembly. Verify display is connected.

Sprayer may be 

pressurized.

Pressure less than 

200 psi (14 bar, 1.4 MPa).

Increase pressure as needed.

Sprayer is pressurized. 

Power is applied. 

(Pressure varies with 

tip size and pressure 

control setting).

Normal operation.

Spray

Sprayer stops. Engine 

is running.

Exceeded pressure limit.

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.

Sprayer stops. Engine 

is running.

Pressure transducer faulty, 

bad connection or broken 

wire.

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.

Sprayer stops. Engine 

is running.

High clutch current.

1.

Check wiring connections.

2.

Measure: 1.2 + 0.2 

Ω (GMAX II 3900); 

1.7 + 0.2

 Ω (GMAX II 5900/ 7900 & TexSpray 

7900HD) across clutch field at 70°F.

3.

Replace clutch field assembly.

(with constant 

green LED)

Sprayer stops. Engine 

is running.

Loss of paint to pump or 

severe pressure loss.

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.

Sprayer stops. Engine 

is running.

Pressure greater than 

2000 psi (138 bar, 14 MPa) 

while in Flush Timer Mode.

1.

Open prime valve and gun.

2.

Verify no flow obstructions or clogged filter.