9500hr stops. Only when wife runs on it
I have an old 9500hr treadmill. Couple of months ago i bought and changed the belt, and since then we have has issues with the treadmill suddenly stops, and says "system initialization" before we can continue. Weird thing is. It only stops when my wife runs on it. She usually runs 5 km at around 11km/hr. She is 65 kg and i am 90 kg. I run at any distance and pace (also longer runs at around 11 km/h). When she runs i stops 1 or 2 times each run. Any suggestions?