CCN_ : Control Board P_
To avoid serious injury follow all warnings and instructions in the manual. Wear appropriate personal protective equipment.
If software updates to the hot or cold driver boards fail before completion, they will not be able to communicate. Update software to the latest available on help.graco.com.
Disconnect pump from AC power. Verify the cold board is securely fastened on the spacers above the hot board.
Replace driver electronics cover.