So he checked the wiring, and the wire to power the belt was damaged.

Just be carefull if you choose to buy this one, the wiring could get damaged during shipping.

I been using it a few weeks now, works good, but noticed at times when jogging, that there is a strange sound that comes from the right silver area, and he said it's a loose wire inside, I don't hear it all the time,

They diagnosed it as possibly being some bad wiring and told me they'd mail me a replacement part and that a repair company would be calling me in a few days