Repair / Réparation / Reparación

Digital Display Messages

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• Digital messages are not available on all sprayers

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• Blinking LED total count equals digital error code

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Example: Two blinks is the same as E=02).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DISPLAY*

LED BLINKS

SPRAYER OPERATION

 

INDICATION

ACTION

 

 

 

 

 

 

 

 

No Display

Never blinks

Sprayer may be

 

Loss of power or

Check power source. Relieve pressure

 

 

 

 

 

 

 

pressurized

 

display not

before repair or disassembly. Verify display

 

 

 

 

 

 

 

 

 

 

 

 

 

connected

is connected.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Sprayer may be

 

Pressure less than

Increase pressure as needed

 

 

 

 

 

 

 

pressurized

 

200 psi (14 bar, 1.4

 

 

 

ti6314a

 

 

 

 

 

 

 

 

 

 

MPa)

 

 

 

 

 

 

 

 

 

 

 

 

psi

Once

Sprayer is pressurized.

 

Normal operation

Spray

 

 

 

 

 

Power is applied.

 

 

 

 

 

 

 

bar

 

 

 

 

(Pressure varies with tip

 

 

 

 

 

 

 

MPa

 

 

 

 

size and pressure control

 

 

 

 

 

 

 

ti6315a

 

 

 

 

setting.)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Three times

Sprayer stops.

 

Pressure transducer

1.

Check transducer connection

 

 

 

repeatedly

Engine is running.

 

faulty, bad

2.

Disconnect and reconnect transducer

 

 

 

 

 

 

 

 

 

 

 

 

 

connection or

 

 

 

 

 

 

 

 

 

 

 

 

 

 

plug to ensure good connection with

 

ti6317a

 

 

 

 

 

 

 

 

 

 

broken wire

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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.

 

 

 

 

 

 

 

 

 

 

 

 

Five times

Sprayer stops.

 

High clutch current

1.

Check wiring connections.

 

 

 

repeatedly

Engine is running.

 

 

 

 

2.

Measure: 1.7 + 0.2Ω across clutch field

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ti6318a

 

 

 

 

 

 

 

 

 

 

 

 

 

 

at 70°F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3.

Replace clutch field assembly

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Sprayer stops.

 

Loss of paint to

1.

Check for empty paint condition, clogged

 

 

 

 

 

 

 

Engine is running.

 

pump or severe

 

inlet strainer, failed pump or severe leak

 

 

 

 

 

 

 

 

 

 

 

 

 

pressure loss

2.

Reduce pressure and turn pump

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

switch OFF and ON to restart pump

 

 

 

 

 

 

 

 

 

 

 

 

Seven times

Sprayer stops.

 

Pressure greater

1.

Open prime valve and gun

 

 

 

repeatedly

Engine is running.

 

than 2000 psi (138

2.

Verify no flow obstructions or clogged

 

 

 

 

 

 

 

 

 

 

 

 

 

bar, 14 MPa) while

 

 

 

 

 

 

 

 

 

 

 

 

 

 

filter

 

ti6320a

 

 

 

 

 

 

 

 

 

 

in Flush Timer

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Mode

 

 

 

 

 

 

 

 

 

 

 

 

* Error codes also appear on control board as a blinking red

 

After a fault, follow these steps to restart sprayer:

 

LED. LED is an alternate to digital messages.

1.

Correct fault condition

 

1. Remove two screws (71) and swing down cover (130).

2.

Turn sprayer OFF

 

 

2. Start engine. Blink count is the same as error code(E=0X).

3.

Turn sprayer ON

 

ti13343a

60

313313A

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Image 60
Graco Inc 500G, 313313A, 256790 Digital Display Messages, Display LED Blinks Sprayer Operation Indication Action