12
No lubrication or regular maintenance is needed beyond reasonable care and periodic
cleaning of strainer basket. When pump is not in use and there is a risk of frost, empty
it completely through the drain plug. If shaft seal is worn or damaged consult your
Pentair Water authorised service agent.
Symptom
Cause
Remedy
Low water pressure, low fl ow
from pump.
Suction leaks / lost prime.
Pump must be primed; make sure
that the pump casing and strainer
are full of water. Refer priming
instructions.
Make sure there are no leaks in
suction piping.
Make sure suctions pipe inlet
is well below the water level to
prevent pump from sucking air.
Suction lift of 3 to 6 metres will
reduce performance. Suction lift
of more than 6 metres will prevent
pumping and cause pump to lose
prime. In either instance, move the
pump closer (vertically) to water
source. Ensure that the suction
pipe diameter is large enough.
Low voltage.
Check voltage at motor terminals
and at meter while pump is
running - this check should
be performed by a qualifi ed
electrician only. If voltage is low
check for loose connections or
consult your power company.
Clogged pipe / strainer /
impeller / fi lter system.
Ensure trap is not clogged with
debris; clean basket and/or fi lter.
Make sure that the impeller ius not
clogged. This should be checked
by qualifi ed personnel only.
Pump may be trying to push too
high a column of water. If so, a
higher pressure pump is required.
Trouble Shooting
Summary of Contents for SilentFlo SF1100100
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