Dolphin Moby

by John
(London)

Hi , I have had my Moby for a few years and it has been faultless until now . The impeller is working fine and the fan also as when it is going over dirty tiles you can clearly see where it has been. The problem is that it is shunting back and forth in short movements and only occasionally performing a long run to the end on the pool where it doesn't partially climb the wall and so stays bumping against the wall for ages , sometimes not changing direction for so long I give up watching. I have always kept the bag clean and occasionally check the fan and casing for any thing that shouldn't be there. If you have any advice for me I would be very grateful. Regards.
ADMIN REPLY: Check for debris such as leaves stuck in and around the impeller.