Guide :Vacuums : U6634-900 WindTunnel Bagless Upright Vacuum
Embedded Dirt Finder green light won't come back on - stays red
I've taken the bottom panel off and looked for blockages, following instructions in the manual, cleaned the brush roll, emptied the dirt cup and can't find anything. The vacuum still has suction and picks up dirt, but something starts to smell after a few minutes of vacuuming. I moved the sensitivity switch from Hi to Reg, and no change. The green light used to come on. I know my carpets didn't suddenly become filthy over night, honest.
What can I try next? I