There are several possible reasons for the vacuum turning off on its own including blockages battery runtime and overheating.
Vacuum cleaner turned on by itself.
A central vacuum cleaner system that starts to run on its own has a problem with its control system.
It was about 5 seconds we were staring at each other and i found it really unsettling so i turned back and looked again but she wasn t there.
Disconnect the low voltage wires from the side of the unit.
I said that woman didn t you see.
If the vacuum seems hot let it cool off first.
Plug unit cord back into power.
For proper operation be sure the unit on off switch is always in the off position.
I turned back and she was looking me right into my eyes.
If your vacuum has a reset button push it.
Once you have done so turn the vacuum back on and see if the problem is fixed.
If that roller is tangled and will not spin that could be a reason why the vacuum cleaner will not turn on.
I bumped into her.
If you can hear power going into the motor but the vacuum is still not working then turn the vacuum off and clean or untangle the brush head.
An intermittent short in the low voltage control wiring is rare but it can happen.
Be sure the vacuum unit is unplugged.