Chosen Solution

Power does not stay on

two things might cause this: a stuck roller or an intermittent connection. Intermittent connections may be caused by a bad switch, a bad push on connector or a loose mechanical switch trip mechanism.

My Dyson SV04 does goes on and off when I try to vacuum but stays on if I just turn it on without vacuuming anything. I think that it’s a bad battery. I need to know how to take apart the battery pack and replace the individual cells.

Could also be as simple as the hidden dust bag is filled. https://www.youtube.com/watch?v=sMpgK_32