I have a Tiger Shark Plus and when I turn it on, the impellor is moving but the unit won't move in either direction. Took it out of the pool and turned it on - there is clicking noise like some sort of plastic gearing is skipping as it tries to move the unit, but it doesn't move. Goes a few inches forward, then a few inches backward, and then repeasts that. The unit worked last fall and this is the first time I am trying to use it this year. Thoughts?? Thanks, Mike

SOURCE: How can I keep my Tiger Shark from sticking to the main drains.

Decrease suction on main drain and increase suction to cleaner.

SOURCE: removing pool pump impellor

Separate pump and motor. Remove diffuser. Remove back cover from motor. Motor shaft has either a slot for a screwdriver or a flat area for a wrench. Hold shaft and unscrew impeller.

SOURCE: My tiger shark pool cleaner spends a lot of time

the tiger shark is designed to climb but you can adjust the weights to keep it down. check out http://www.aquavacsystems.com/Weights-and-Floats_ep_31-1.html
for more info and specs of your unit. good luck

The Pool Tech

SOURCE: Aquavac Tiger shark won't operate

The power supply powers on even when it doesn't output any voltage, so it's kind of misleading. You should have the power supply checked or you can do it yourself if you have a multi-meter, by measuring the output and making sure there is 24V.

SOURCE: my tiger shark pool cleaner

The pool cleaners impeller may be clogged or jammed with debris. Check and clean if necessary. The brush rollers or drive tracks could also be stuck. Check for debris and remove. It is most likely one of these problems if it is shutting off after only seconds of running. If these don't seem to be the problem, I would check your power source.