Video link on how to center the potentiometer
Below is a link to a video for centering the potentiometer on a 5w/CC lite/waste caddy/waste caddy lite/ CC shorty/ EPC.
The tools needed will be a ratchet, 3/8" socket or wrench, 5/16" socket or wrench, a multimeter with a minimum ohm range of 20,000, and a thin 1/2" wrench. Below is the link on how to center the potentiometer.