Why does my brush bar not spin?
I have recently replaced the entire head module after the old one burned out and things were working good for a few months. Now the brush bar has stopped working again. The issue started with the brush bar spinning intermittently when I lowered the handle to engage to brush bar. The brush bar would only engage when I held the handle at certain angles. Now it won’t engage at all. When I remove the head I still have suction. I suspect this might be a wiring issue. Any ideas on what parts need replaced?