The volume control can be disabled on the End Fitting > HI Setup screen using the Volume Settings toolbox. Here you can set the Volume Control Up option to off, and the Volume Control Down option to off. Alternatively, you can ensure that the dropdown boxes associated with the hearing instrument controls in the End Fitting > HI Setup screen have been configured to not include a volume control (e.g., set the lever / dial to off via the provided dropdown box).
The Unitron support team is here to help. Learn more about important topics and find resources that will help you with all of your Unitron products.