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7. SERVICING
8. TROUBLE SHOOTING
WARNING -
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 stainer 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.