20
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
Possible Cause
Corrective Action
Pump failure.
Pump will not prime - Air leak, too much air.
Pump will not prime - Not enough water.
Pump strainer gasket is clogged.
Pump strainer gasket is defective.
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.
Reduced capacity
and/or head.
Air pockets or leaks in suction line.
Clogged impeller.
Pump strainer clogged.
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.
Pump fails to start.
Mains Voltage is not present
Pump shaft is locked
Pump shaft is damaged
1.
Replace fuse, reset breaker/GFCI.
2.
Tighten mains wire connections.
Check if the pump can be rotated by hand and remove
any blockage.
Replace pump.
Pump runs then
stops.
Over temperature FAULT
Over current FAULT
Check that back of pump is free from dirt and debris.
Use compressed air to clean.
Pump will automatically restart after one (1) minute.
Pump is noisy.
Debris in contact with fan
Debris in strainer basket
Loose mounting
Check that back of pump is free from dirt and debris.
Use compressed air to clean.
Clean strainer basket.
Check that mounting bolts of pump and pump are tight.
