TROUBLE
POSSIBLE CAUSE
PROBABLE REMEDY
PUMP WILL NOT
RUN (MANUAL
MODE)
MOTOR RUNS,
BUT PUMP FAILS
TO DELIVER
RATED DIS-
CHARGE
PUMP WILL NOT
RUN (AUTOMATIC
MODE)
PUMP RUNS WITH
EXCESSIVE NOISE
OR VIBRATION
S SERIES
OM--05096
TROUBLESHOOTING
PAGE D -- 1
TROUBLESHOOTING --- SECTION D
Review all SAFETY information in Section A.
Hardened mud or sludge in impeller.
Remove strainer, check and clean.
Damaged power cable.
Inspect and replace as required.
Strainer clogged.
Check and clean as required.
Impeller binding.
Check freedom of rotation. Add shims
or gaskets as required.
Liquid level device(s) fouled with mud
Clean liquid level device(s).
or foreign material.
Float type sensing device(s) tangled or Check installation for free movement
obstructed.
of float.
Defective liquid level device(s).
Replace device.
Discharge line clogged or restricted;
Check discharge lines; straighten
hose kinked.
hose.
Liquid being pumped too thick.
Dilute liquid by heating if possible
.
Worn impeller vanes.
Check impeller.
Pumping entrained air.
Check liquid level in sump; check
position of pump.
Damaged or unbalanced impeller.
Replace impeller.
Pumping entrained air.
Check liquid level in sump; check
position of pump.
Damaged impeller.
Inspect and replace impeller.
