I have a similar problem. When I pull the trigger, it continues to work but the brush head stops after a second. I’ve cleaned it thoroughly and it’s completely charged. One thing to point out is that when I remove the brush head and pull the trigger, it continues to spin without a problem. I just can’t figure out why it won’t continue to roll with the brush head on. FYI- I’m not talking about taking the head attachment off. I’m talking about tanking the brush roll off itself leaving the mechanical parts of the brush head attachment assembled.