Graco 695 Operation Manual page 28

Troubleshooting
TYPE OF PROBLEM
Sprayer does not run at all
Display shows CODE 03
Control board status light blinks
3 times repeatedly
Sprayer does not run at all
Display shows CODE 4
Control board status light blinks
four times repeatedly
28
WHAT TO CHECK
Check transducer or transducer
connections (control board is not
detecting a pressure signal).
Check voltage supply to the
sprayer (control board is
detecting a multiple voltage
surges).
HOW TO CHECK
1. Set sprayer to OFF and disconnect power to
sprayer.
2. Check transducer and connections to control board.
3. Disconnect transducer from control board socket.
Check to see if transducer and control board
contacts are clean and secure.
4. Reconnect transducer to control board socket.
Connect power, set sprayer ON and control knob
to 1/2 turn clockwise. If sprayer does not run,
set sprayer to OFF and go to next step.
5. Connect a confirmed working transducer to control
board socket.
6. Set sprayer ON and control knob to 1/2 turn
clockwise. If sprayer runs, install new transducer.
Replace control board if sprayer does not run.
7. Check transducer resistance with ohmmeter (less
than 9k ohm between red and black wires and 3-6k
ohm between green and yellow wires).
1. Set sprayer to OFF and disconnect power to
sprayer.
2. Locate a good voltage supply to prevent damage to
electronics.
332916E