Troubleshooting

Electrical

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.

Problem

What to Check

How to check

 

 

 

Sprayer does not run at all

See flow chart, page 39.

 

AND

 

 

Display is blank

 

 

OR

 

 

Control board status light never lights

 

 

 

 

 

Sprayer does not shut off

Control board.

Replace control board.

AND

 

 

Display shows E=02

 

 

OR

 

 

Control board status light blinks 2

 

 

times repeatedly

 

 

 

 

 

334466A

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Graco 334466A important safety instructions Electrical, Problem What to Check How to check