Why did my vacuum just shut off will not turn on

Hi @charlesgodin

Was the vacuum overheated?

There is a thermal cutoff switch in the motor that if the motor overheats, it operates and shuts it down until it has cooled. It should then start again OK

If it wasn't overheating, do you have a DMM (digital multimeter)?

If so, initially you may have to open the vacuum cleaner up and with the power disconnected, use the Ohmmeter to make sure that the wires in the power cord are all OK from plug to the machine (fractured cord?) and then if they're OK check that the on/off switch works OK electrically.

After that further testing would be required to know what's happening