
Franklin Electric Co., Inc. | Oklahoma City, OK 73157-2010
800.701.7894 |littlegiant.com
For technical assistance, parts, or repair, please contact:
10000011799 Rev. 001 10/22 Copyright © 2022, Franklin Electric, Co., Inc. All rights reserved.
Troubleshooting
Problem Probable Causes Corrective Action
Pump does not turn on
Pump not connected to electrical power Connect pump to a dedicated circuit equipped
with GFCI.
Circuit breaker off or fuse removed Turn on circuit breaker or replace fuse.
Accumulation of trash on float Clean float.
Float obstruction Check float path and provide clearance.
Defective switch Replace switch.
Defective motor Replace pump.
Pump will not shut off
Float or float rod obstruction Check float and float rod path and provide
clearance.
Pump is air locked Remove pump and clean air bleed hole.
Liquid inflow matches pump capacity Larger pump required.
Defective switch Replace switch.
Pump runs but does not
discharge liquid
Check valve installed backwards Check flow-indicating arrow on check valve
body to ensure proper installation.
Check valve stuck or plugged Remove check valve and inspect for proper
operation.
Lift too high for pump Check rated pump performance.
Inlet to impeller plugged Pull pump and clean.
Pump is air locked Remove pump and clean air bleed hole.
Pump does not deliver
rated capacity
Lift too high for pump Check rated pump performance.
Low voltage, speed too slow Check that supply voltage matches the name-
plate rating.
Impeller or discharge pipe is clogged Pull pump and clean. Check pipe for scale or
corrosion.
Impeller wear due to abrasives Replace pump.
Pump cycles continuously
No check valve in long discharge pipe allowing
liquid to drain back into basin Install a check valve for correct operation.
Check valve leaking Inspect check valve for correct operation.
Basin too small for inflow Install larger basin.
Water sprays out of a hole
in the discharge pipe
There should be a bleed hole in the discharge
pipe that allows trapped air to escape the
pump, preventing air lock. Water spraying out
of this hole is completely normal
No corrective action is required.
Protector tripping (motor
overloading/overheating)
Obstructed pump impeller Pull pump and clean.
Switch stuck in the ON position Clean float path and provide clearance.
Pump running dry Ensure the pump has an adequate inflow sup-
ply.
Pump air-locked Shut power off for approximately 1 minute,
then restart. Repeat several times to clear air
from pump.
Pump short cycling Inspect check valve for proper installation and
operation.
Excessively high or low voltage supply Refer to “Specifications” on page 1.
Inadequate wiring Refer to “Electrical Connections” on page 5.
Incorrect motor connections
Misapplication of the product Inspect fixtures, inlets, and outlets for leaks.
Repair and correct application as needed.
Operating the pump at low heads (low dis-
charge restriction) Confirm pump performance and recheck siz-
ing calculations.
Pump, motor, bearings, or seal have reached
the end of their useful life Replace pump.