I've had my Aquabot Turbo for less than 2 years, and this has happened about 10 times so far. The last time it caused the treads to stop moving, but the motor kept going and the damn thing ground all the teeth off the drive belt.
When my replacement parts arrived, I ran the cord down inside an old 16" pool hose that's too wide for the Aquabot to grab onto. It's been 3 days so far.
I have done more repairs on my Aquabot in less than 2 years than I did on my old Kreepy Krawly vac in 10 years. During those 10 years I was always able to make any Kreepy repairs by improvising with materials I already had (bolts, nuts, rubber gasket material). I've already spent about $100 on parts for the Aquabot.