Graco 334466A Manual De Usuario

Symptom: Sprayer does not run, stops

running, or will not shut off.

Perform Pressure Relief Procedure, page

13.
1.

Plug sprayer into correct voltage, 

grounded outlet.

2.

Turn the ON/OFF switch OFF wait 30 

seconds and then turn power back ON 

again (this ensures sprayer is in normal 

run mode).

3.

Turn pressure control knob clockwise 

1/2 turn.

4.

View digital display or remove control 

box cover to view control board status 

light. To determine which code (or any 

other code besides voltage supply) refer 

to the control board status light. Turn the 

ON/OFF switch OFF, remove the control 

cover then turn power back ON. Observe 

the status light. Blinking LED total count 

equals the error code (for example: two 

blinks equals CODE 02).

Keep clear of electrical and moving parts 

during troubleshooting procedures. To 

avoid electrical shock hazards when 

covers are removed for troubleshooting, 

wait 7 seconds after disconnecting power 

cord for stored electricity to dissipate.

Sprayer does not run at all

AND

Display is blank

OR

Control board status light never lights

See flow chart, page 39.

Sprayer does not shut off

AND

Display shows E=02

OR

Control board status light blinks 2 

times repeatedly

Control board.

Replace control board.