Hi, I have this vacuum cleaner FC6168 that is not working . If it’s on battery, I press the power on button and noting happens . It I plug the charger, the Red LED started to light intermittently and if I press the ON/off button noting happens. I know there is an issue with control board . It seems that the BMS is not charging or discharging . The battery pack is ok, I measured 19V on board tests points. What was demaged? There is S8205B li-ion control management IC that control the charge and discharge FETs ICs. Could be dameged. How to check it? What else ?
Thanks