Hoover U6437-900 / U6439-900 Windtunnel Bagged Upright Vacuum "red light stay wind" Questions

...red light dirt finder stays on There's a microphone inside the tube the dirt runs up. It listens for dirt coming up the tube. They just go bad and there's no making it better. You can either replace ...

red light on the embeded dirt finder always stays on. The red light is only supposed to be on under very dirty conditions. The green light is supposed to be on under normal conditions. The green light

We have a new hoover wind tunnel and the red indicator light stays on and smells like it's over heating. Filters all look good. What else could it be? It could be a clog somewhere

...Red Light Dirt Sensor Dirt Sensor Light stays red continuously on my Hoover U6433-900 Wind-Tunnel Upright Vac. I checked for a sensor light/beam in vacuumed air path that might have gotten covered ...

...red and it would shut down after about 5 minutes.  It ended up being a clog that I discovered after taking the hose completely off and seeing a clump right where the hose detaches.  I began ...