Electrical - Graco 25R757 Operation, Parts

Troubleshooting

Electrical

Symptom: Sprayer does not run, stops
running, or will not shut off.
1. Perform Pressure Relief Procedure,
page 9.
2. Plug sprayer into correct voltage,
grounded outlet.
3. Turn the ON/OFF switch OFF wait 30
seconds and then turn power back ON
again (this ensures sprayer is in normal
run mode).
4. Turn pressure control knob clockwise
1/2 turn.
Error Code Messages
CODE
02 HIGH PRESSURE
DETECTED - RELIEVE
PRESSURE
03 PRESSURE TRANSDUCER
NOT DETECTED
05 MOTOR NOT SPINNING
06 MOTOR OVERHEATED
26
MESSAGE
5. 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 5 minutes after disconnecting power
cord for stored electricity to dissipate.
ACTION
Check for clogs. Use only Graco spray hoses,
use a minimum of 50ft/15m.
Check transducer connection.
Check for mechanical failure and check motor
connections. Material may be too thick, thin
material.
Turn sprayer OFF. Check motor connections.
Check shroud vents for blockage. Sprayer
may take up to an hour to cool.
334641J