Hi,
I have used my SEBO X4 for a number of years and the motor recently appeared to burn out without warning.
I have replaced it with a new one from you. This rotates freely and works but there is a problem. As soon as even a small load is put on it, such as when on a hard floor, there is a strong electrical smell indicative of the brushes arcing badly. On a carpet it is even worse and smells so bad we dare not use it.
I am confident there are no mechanical problems as this new motor turns freely.
Was replacing the motor fixing the symptom and not solving the problem, which still exists.
I have no idea what could be the root cause that replacing the motor hasn't solved and would appreciate any advice or suggestions diagnosing this fault.