I am experiencing an immediate Rotating Brush Fault upon starting a cleaning session with Eufy. It gives a solid red light and a quad-beep. I disassembled the entire system, cleaned out all the dust, hair, and the like. I confirmed the bearings of the brush spin freely and the brush motor also spins without issue. After reassembly, I got the same fault. I thought it might be a low battery voltage not able to produce the required torque to spin the brush, so I left it switched off on the charger for ~16hr. No luck.
Any ideas on what is going on? Is there like an encoder on the brush motor that might have gone bad or stuck?