robocleaner wrote:The manual explains when/why the LED's light constantly or flash. The warm 'motors' near the brush are the batteries - they will be warm when they're fully charged. The plastic part which has fallen out of your robot is a stabiliser spring - there are two inside and they help centre the outer shell. The one in your picture is broken - your robot must have had a serious knock (or been trodden on) to break it though! It's unlikely the robot will run properly without them, but they're cheap to replace - you can order them direct from Karcher.