If you feel the treadmill is giving off static electricity, check the following points.
Are you using a grounded outlet?
Flow Fitness recommends that all treadmills be used only with a grounded outlet.
Is the treadmill on a carpet?
This creates static electricity. Put a rubber mat underneath if you have carpet.
Is the treadmill properly lubricated?
The drier the treadmill gets, the more static electricity is generated. It is recommended to lubricate the sliding surface under the belt every 1 to 2 months or after every 50 hours of use with the lubricant provided. Check this in your manual.