Troubleshooting - Liberty Pumps 260 Manuel D'installation

F. For continuous operation the pump must be submerged to prevent the motor from overheating. If this
occurs, the pump will shut itself off until the motor cools to its normal temperature. Repeated overheating
may cause damage to the pump.
G.
Your pump is designed to effectively pump water. Although it will usually pass small particles suspended in
water, grass, heavy mud, sand or pea gravel can clog the pump and reduce the pump's performance. This
can usually be cleaned out by back flushing with a garden hose through the discharge. The normal
performance that can be expected is as follows:
Model Pumping Height
260 Gallons/min
3

Troubleshooting

Problem
Pump will not run or
hum.
Pump runs or hums
but does not
remove water.
Pump runs but
removes very little
water.
Circuit breaker trips
or fuse blows when
pump starts.
0' 5'
16 15
Cause
Blown fuse or other interruption of

power; improper voltage.
Plug on power cord may not be

making contact in receptacle.
Discharge line may be blocked or

frozen.
Vertical lift is beyond pump's

capability.
Inlet screen of pump is plugged or

the impeller is jammed.
Anti-airlock hole is plugged with

debris.
Pump failed to prime due to

insufficient water depth
Pump has met or exceeded its

maximum lift.
Vertical lift is approaching pump's

maximum lift capability.
Pump's inlet is partially blocked.

Fuse or breaker is too small.

Other major appliance is on the

same circuit.
Pump is connected to an extension

cord or wiring is inadequate.
Defective motor or switch.

©Copyright 2012 Liberty Pumps Inc. All rights reserved
10' 15'
14 12
Correction
If blown, replace with properly sized fuse or

reset breaker; if voltage is under 108V, check
wiring size. Remove extension cord if
connected.
Check security and connection. If receptacle

is corroded, have it replaced by a certified
electrician.
Make sure line doesn't pass through cold

areas or isn't blocked.
Model 260 has a maximum lift of 30' Total

Dynamic Head.
Remove the pump screen and clean inlet and

impeller.
Clean out anti-airlock hole at base of

discharge tower.
Prime pump by placing it in a bucket of water

or move it to a deeper area of flooded region.
Route discharge piping to a lower level. If this

isn't possible then a larger pump may be
required.
Model 260 has a maximum lift capability of

30'.
Remove volute and make sure inlet is clear of

debris.
A 15-amp breaker should be used.

Pump should be on its own circuit.

Have an electrician check for proper wiring.

Consult factory.

20' 25'
9 5
30'
0
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