CONDITION
PROBABLE CAUSE
Red light comes on at control box.
This indicates some water has leaked past the lower seal and has entered
the seal chamber and made contact with the electrode probe. Pump must
be removed from basin within approximately two (2) weeks for
replacement of lower seal. This preventive repair will save the motor.
Overload trips at control box and
1. Push in on red reset button to reset overload. If overload
alarm buzzer or flashing red light
trips again after short run, pump has some damage and must
comes on due to high water level
be removed from basin for checking.
in basin.
2. Trouble may be from clogged impeller causing motor to
overload or could be from a failed motor.
3. Trouble may be from faulty component in control box.
Always check the control box before removing the pump.
Yellow run light stays on continuously. 1. Indicates H-O-A switch may be in the hand position.
2. Level control switch may have failed causing pump to
continue to operate when water is below lower control.
3. Impeller may be partially clogged, causing pump to operate
at very reduced capacity.
4.
Gate valve or check valve may be clogged causing low pump flow.
5.
Pump may be air logged. Lift arm on check valve to vent off air. Also,
check that the 5/32” vent hole in the volute is open.
Circuit breaker trips.
1. Reset breaker by pushing clear down on handle then back to
on position. If breaker trips again in a few seconds, it
indicates excessive load which is probably caused by a short in the
motor or control box. Check out instructions given with control box
before pulling pump.
2.
If this condition happens after an electrical storm motor or control box
may be damaged by lightning.
3.
Resistance reading of the motor with lead wires disconnected from the
control box can determine if trouble is in motor or control box.
Pump is noisy and pump rate is low.
1. Impeller may be partially clogged with some foreign objects
causing noise and overload on the motor.
2.
Impeller may be rubbing on wear ring due to a bent shaft or
misalignment.
3.
Pump may be operation too close to shut-off. Check head.
Grease and solids have accumulated 1. Lower control which may be set too high.
around pump and will not pump out of 2. Run pump on manual operation for several minutes with a
basin.
small amount of water running into basin to clean out solids and grease.
This allows pump to break suction and surge, breaking up the solids. If
lever switch is set properly, this condition generally will not occur.
3. Trash and grease may have accumulated around floats
causing pump to operate erratically.
