Nordic Track APEX 4100i speeds up

jeanne3

My Nordic Track APEX 4100i starts out at 3 and by about 10 minutes in, it randomly speeds up to 4+. If I step off it to the railings, it returns immediately to 3, but I step back on and immediately picks up speed. This has been a wonderful faithful treadmill for probably 20 years so would love to be able to fix.

admin-it

wow on 20 years! definitely want to save!

let's start out with the easy stuff first:

https://www.treadmilldoctor.com/treadmill-belt-and-deck-inspection