I've got a Pentair Sand Shark and for the most party, I've been very happy with it. RIght now, however, I'm getting a little frustrated as the oscillator isn't working right and as a result, the cleaner won't move on the bottom of the pool.
If I pick the cleaner off the bottom while leaving it under the water, I can feel plenty of suction into the Sand Shark. The oscillator will be pinned against the front of the cleaner. If I give it a light flick with my finger, the oscillator resumes it normal front to back movement. Suction remains constant and everything seems great.
However, when I let the Sand Shark go and it floats to the bottom of the pool, the oscillator stops its movement the moment it hits the bottom. Same effect is generated if I manually place the cleaner against the side of the pool. If I bring it back to the surface, the oscillator is pinned again againt the front of the Sand Shark.
There are no obstructions that I can see.
Any ideas on what might be wrong?