It’s a loose loctited (red) screw that holds the brush head handle in place, bunch of videos on YouTube how to fix it. Bit of a PITA to get it open - but I cleaned, tightened and loctited again the crap out of it and going another 3 years strong since that fix.
It’s a loose loctited (red) screw that holds the brush head handle in place, bunch of videos on YouTube how to fix it. Bit of a PITA to get it open - but I cleaned, tightened and loctited again the crap out of it and going another 3 years strong since that fix.