Pentair SuperMax High Performance Pumps SuperMax Installation Guide - English - Page 11

7 TROUBLESHOOTING Problem Pump failure. Possible Cause Pump will not prime - Air leak, too much air. Pump will not prime - Not enough water. Reduced capacity and/or head. Pump stainer gasket is clogged. Pump strainer gasket is defective. Air pockets or leaks in suction line. Clogged impeller. Pump strainer clogged. Corrective Action Check suction piping and valve glands on any suction gate valves. Secure lid on pump strainer pot and be sure lid gasket is in place. Check water level to be sure skimmer is not drawing air. Be sure the suction lines and pump strainer pot are full of water. Be sure valve on suction line is working and open (some systems do not have valves). Check water level to make sure water is available through skimmer. Clean pump strainer pot. Replace gasket. Check suction piping and valve glands on any suction gate valves. Secure lid on pump strainer pot and be sure lid gasket is in place. Check water level to be sure skimmer is not drawing air. Turn off electrical power to the pump. Disassemble (see page 5, 'Pump Disassembly') Clean debris from impeller. If debris cannot be removed, complete the following steps: 1. Remove left hand thread anti-spin bolt and o-ring. 2. Remove, clean, and reinstall impeller. Reassemble (see page 6, 'Pump Reassembly') Clean suction trap. SUPERMAX® High Performance Pump Installation and User's Guide