![background image](http://html1.mh-extra.com/html/graco/probell-electrostatic-controller/probell-electrostatic-controller_instructions-and-parts_2251234066.webp)
4. Using a 5.5 mm (7/32” socket) tool, remove four
nuts from the main board. Disconnect the three
remaining cables.
5. Lift the main board carefully out of the module.
6. Remove four nuts and washers. Lift the power
board carefully out of the module.
7. Remove 4 spacers, then remove the LCD panel.
8. Remove 2 screws and lift out the membrane
(button) panel.
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