Why is my MB4040 motor running at such a low RPM?The device turns on and the blade will cut minimally, but it does not seem to be working as it should. The motor is quiet...
回答“Why will my device not turn on?”This is probably due to a dead battery. The other issue that could arise pertains to a malfunction with the power supply.
回答“Why does my razor pull hair instead of removing it?”This is probably due to a dull blade. The best method of dealing with the dull blade is to replace the blade, but a possible solution could be to remove the blade and clean it off.