Found this company via yelp. Read the reviews and called Genady (owner). He came over and fixed our treadmill in an hour. Gave us some advice on maintaining the unit and fixed the problem. We had guests over and one of their kids had somehow shoved plastic into the wheel base which was affecting the motion sensor. Genady fixed the unit at the price ($95) he quoted (service call) but he was upfront that it may cost more if parts needed to be replaced (which they didn't). We'll definitely call him again if any of the other units need service.