Pressure & Suction-Side Swimming Pool Cleaner systems need working hydraulics, pumps and filter systems in order for it to function properly. When this system is giving you trouble, first check the pressure gauges and pumps. Problems that could occur with these areas are damaged hoses, a dead pump, or just common wear and tear. The most common place for malfunction is within the hoses.
Other common problems with Pressure & Suction-Side Swimming Pool Cleaner systems come from debris. If the cleaner is made with a rubber diaphragm, the debris tends to get caught in that rubber. Sometimes it may even cause a puncture in the rubber.
Other parts for Pressure & Suction-Side Swimming Pool Cleaner systems may just need replacing. Common parts may include belts or flotation devices.
One last problem may occur when you are reinstalling the unit. When putting the Pressure & Suction-Side Swimming Pool Cleaner system back together, do not twist the main part too tightly. This could cause the gaskets and bearings to be stretched, which will then cause the entire system, mainly the turbine, not to run correctly. The best way to re-install is to tighten until you feel some tension. Do not over tighten!!!