Have a lux legacy c 153c made by aerus comes on and runs fine for maybe 90 sec then shuts off and in about 90 sec will come back on .has great suc and runs great while runing

Is the motor overheating? Or is it more like there's a loose connection in the on/off switch? What happens if you reel in the cord a little? Could be there is a spot somewhere in the rings which is corroded or worn out and not making contact. Might also be a break somewhere in the winding inside the motor.

I have a similar situation in my Aerus C15C3. An Aerus brand bag ruptured inside my vacuum cleaner, but I didn't realize until the motor started making a horrible noise! To make matters worse, I hooked up my older Electrolux LE 1623 and at tried to suck as much debris out of the air intake at the bottom of the bag compartment, and then put the C15C3 back into service. I should have stopped then and there and started working on trying to get the motor and the fan out of the housing. But my machine was overheating and shutting off.

Sears Parts Direct has diagrams of the Electrolux LE 1623 on their website. The good thing about Aerus and the old Electrolux-USA is that they all have similarities in their design, but Aerus does like to tweak their design just enough to foil or at least complicate access to DIYers and general vacuum repair shops.

I hope you post what you find out!