I purchased my Commercial 1750 and the extended warranty from Nordictrack.com on 10/13, we use the treadmill approximately 4 times a week. The machine was working great, until about a month ago when it started making a squeaking sound when we use the incline. The sound has increased in intensity to the point that we can’t use the incline because the noise it too annoying. I contacted Nordictrack’s customer service to get the machine fixed and they refused to send someone to fix the problem.
Beware of the warranty terms and conditions. They first expect the owner to take the machine apart and attempt to fix the problem before they will agree to send a technician.