Troubleshooting - Pentair Flotec E50W220 Installation

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TROUBLESHOOTING

Pump won't
start or run
Pump starts
and stops too
often
Pump won't
shut off
VLT
-34P
Pump
operates but
delivers little
or no water
02-04-20)
FP877 (02-04-20)
Risk of electrical shock. Unplug the pump before touching it or servicing it.
Symptom
Probable Cause(s)
Pump is not plugged in
Blown fuse
Low line voltage
Defective motor
Defective float switch
Clogged or jammed Impeller
Backflow of water from piping
Faulty switch
Defective switch
Restricted discharge (obstacle
or ice in the piping)
Restricted intake screen
Low line voltage
Debris caught in the impeller
Worn or defective parts or
plugged impeller
Check valve installed without
vent hole
Restricted intake screen
Check valve is installed either
backward or upside down
Corrective Action
Make sure the pump is plugged into a proper outlet.
Replace the fuse with a fuse of proper size.
Check the size of the wiring on the circuit feeding the pump
and from the main switch on the property. If everything is
OK, contact your power company or hydro authority.
Replace the pump.
Replace the float switch.
If the impeller won't turn, unplug the pump, remove the
lower pump body, and locate the source of the binding.
Replace the impeller if necessary.
Install or replace the check valve.
Replace switch.
Replace the switch, after first checking that switch is
functional.
Unplug the pump, remove it from the sump, and clean the
pump and piping.
Unplug the pump, remove it from the sump, and clean the
intake screen and impeller.
If the voltage is below 110 V, check the size of the wiring
from the main switch on the property. If OK, contact your
power company or hydro authority.
Remove the pump and clean out the impeller.
Clean the impeller if it's plugged; replace the impeller if
necessary; otherwise replace the pump.
Drill a 1/8" (3mm) dia. hole between the pump discharge and
the check valve (1-2" above the pump discharge and below
the waterline).
Remove the pump and clean out the intake screen.
Be sure the check valve is installed correctly (the flow arrow
should point away from the pump).
9

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E50tltE50vltE75vlt

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