Bought my Dolphin Dynamic from Costco last summer and worked great (once pool temp increased). Dropped it in last week after pool opening and proceeds to work for 10 min. or so and then just stops !! I tried numerous times to clean filter bag, etc. and restart and same problem. Do not think it has anything to do with amount of dirt in the pool, because bag was not that full and last summer it kept on chugging along with much more dirt in the bag. Also, have checked treads and impeller and nothing seems to be clogged or stuck. It seems a number of people on this forum have returned their Dolphin to Costco - - but from what I gather, the reason for the most part seemed to be that it wasnt climbing. I would be very interested in knowing if anybody has experienced similar problems and/or any advice on the cause. I havent yet tried customer service.

Looks like I may buy a poolbuster whilst I consider replacement options... Thanks.