Troubleshooting - Little Giant APCP-1700 Manual Del Propietário

Troubleshooting

Problem
Pump is not plugged in.
Circuit breaker is off or fuse is removed.
Accumulation of trash on float
Pump does not turn on.
Float obstruction.
Defective switch.
Defective motor.
Float obstruction.
Defective switch.
Pump will not shut off. Pump is air locked
Liquid inflow matches or exceeds pump
output capacity.
Frozen water in discharge hose.
Lift too high for pump.
Inlet to impeller plugged.
Pump runs but does not Pump is air locked
discharge liquid.
Outlet flow is blocked.
Frozen water in discharge hose.
Lift too high for pump.
Low voltage, speed too slow.
Pump does not deliver
Impeller or discharge pipe is clogged.
rated capacity.
Discharge hose diameter is too small.
No Check valve in long discharge pipe
allowing water to drain back onto cover.
Check valve leaking.
Defective switch.
Pump cycles continually. Volute clogged.
Float obstruction.
Thermal protector activated.
GFCI device activated.
littlegiant.com
Form 998318 Rev. 002 08/19
Probable Causes Corrective Action
Plug in the pump.
Turn on circuit breaker or replace fuse.
Remove the float access cover. Clean float.
Remove the float access cover. Clean float movement path. Remove
any debris or obstruction.
Replace pump.
Replace pump.
Remove the float access cover. Check float movement path. Remove
any debris or obstruction.
Replace pump.
Shut power off for approximately 1 minute, then restart. Repeat several
times to clear air from pump. If this does not resolve the problem,
clean the vent hole according the MAINTENANCE section.
Multiple or larger pump required. Refer to Capacity sizing.
Thaw hose or replace hose.
Check rated pump performance.
Pull pump and clean.
Shut power off for approximately 1 minute, then restart. Repeat several
times to clear air from pump. If this does not resolve the problem,
clean the vent hole according the MAINTENANCE section.
Check outlet tubing to ensure that it is not kinked or blocked. Clear
blocked tubing of slime and debris. Clean inlet and outlet piping.
Thaw hose or replace hose.
Check rated pump performance.
Check that supply voltage matches nameplate rating.
Pull pump and clean. Check pipe for scale or corrosion.
Replace discharge hose with larger diameter hose. Refer to Capacity
sizing.
Install a check valve in the discharge line.
Inspect check valve for correct operation.
Replace pump.
Clean screen and basket.
Remove the float access cover. Clean float movement path. Remove
any debris or obstruction.
Allow pump to cool.
Inspect all electrical connections and reset the GFCI.
Franklin Electric Co., Inc. | Oklahoma City, OK 73157-2010
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