Pentair SUPERFLO VS2 Guide D'installation page 19

19
TROUBLESHOOTING
Diagnosing certain symptoms may require close interaction with, or in close proximity to, components that are
energized with electricity. Contact with electricity can cause death, personal injury, or property damage. When
trouble shooting the pump, diagnostics involving electricity should be cared for by a licensed professional.
Problem
Pump failure.
Reduced capacity and/
or head.
Challenger VS2 Motor Assembly
Possible Cause
Pump will not prime - Air leak, too much air.
Pump will not prime - Not enough water.
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, pump, strainer, and
pump volute 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 14, '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 15, 'Pump Reassembly')
Clean suction trap.