This is one of the most typical treadmill difficulties these days. Begin by ensuring that the treadmill's power cord is securely hooked into the wall socket. Check the treadmill's batteries to see whether they are in good working order. Resetting the circuit breaker will sometimes solve the problem. You may reset it by disconnecting the treadmill for approximately one minute. 2. If your machine's speed fluctuates while you're jogging, there might be a problem. To begin, consult the owner's handbook to determine the optimal speed setting. Set the machine to the proper settings but leave it turned off. Observe the treadmill for a few minutes to observe whether the belt is hitching.