1. There are too many obstacles near the Docking station , please place the Docking station in an open area.
2. The main unit is too far away from the docking station , please try to put the main unit near the docking station .
3. The position of the recharging lamp of the charging pile is dirty, and the sweeper cannot receive the recharging signal. Please wipe the signal emission area of the charging pile of the main unit recharging lamp.