Corrective Action - Little Giant APCP-1700 Manuel De L'opérateur

Troubleshooting
Problem
Pump is not plugged in.
Circuit breaker is off or fuse is
removed.
Accumulation of trash on float Remove the float access cover. Clean float.
Pump does not turn on.
Float obstruction.
Defective switch.
Defective motor.
Float obstruction.
Defective switch.
Pump is air locked
Pump will not shut off.
Liquid inflow matches or
exceeds pump output capacity.
Frozen water in discharge
hose.
Lift too high for pump.
Inlet to impeller plugged.
Pump is air locked
Pump runs but does
not 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
rated capacity.
clogged.
Discharge hose diameter is too
small.
No Check valve in long dis-
charge pipe allowing water to
drain back onto cover.
Check valve leaking.
Defective switch.
Pump cycles continu-
ally. Volute clogged.
Float obstruction.
Thermal protector activated.
GFCI device activated.
Probable Causes

Corrective Action

Plug in the pump.
Turn on circuit breaker or replace fuse.
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.
MAINTENANCE
Troubleshooting
9