5
TROUBLE CHECK LIST (Cont’d)
CONDITION PROBABLE CAUSE
Circuit breaker trips.
1. Reset breaker by pushing clear down on handle, then back
to On position. If breaker trips again in few seconds it
indicates excessive load, 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. Grinder assembly may be partially clogged with some
foreign objects causing noise and overload on the motor.
2. Grinder impeller may be rubbing on grinder ring due to
bent shaft or misalignment.
Grease and solids have accumulated around pump and
will not pump out of basin.
1. Pump On switch may be set too high.
2. Run pump on Hand operation for several minutes with
small amount of water running into basin to clean out
solids and grease. This allows pump to break suction and
surge which will break up the solids.
3. Trash may have accumulated around lower weight causing
pump to turn off too soon. Clean trash from weight and
suspension cable.
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