Little Giant LG-SCSA Series, Руководство пользователя

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9
TROUBLESHOOTING
Problem Probable Causes Corrective Action
Pump does not turn on
Pump not plugged in. Plug in pump.
Circuit breaker shut-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. Pull pump and clean.
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 it is installed properly.
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. Pull pump and clean.
Pump does not deliver
rated capacity
Lift too high for pump. Check rated pump performance.
Low voltage, speed too slow. Check for proper supply voltage to make certain it corresponds to nameplate voltage.
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 continually
No check valve in long discharge pipe, allowing liquid
to drain back into basin.
Install a check valve in discharge line.
Check valve leaking. Inspect check valve for correct operation.
Basin too small for inflow. Install larger basin.
Water sprays out of a
hole by a bolt on the
base of the unit.
This pump comes with a bleed hole that allows trapped
air to escape from the pump, preventing air lock. Water
spraying out of this hole is completely normal.
No corrective action is required.