Pump Motor Not Running; Motor Thermal Protector Tripped - Xylem Goulds CentriPro Series Service Manual

Pump Motor Not Running

Probable Cause
1. Motor thermal protector
tripped
a. Incorrect control box
b. Incorrect or faulty
electrical connections
c. Faulty thermal protector
d. Low voltage
e. Ambient temperature of
control box/starter too
high
f. Pump bound by foreign
matter
g. Inadequate submergence
2. Open circuit breaker or
blown fuse
3. Power source inadequate
for load
4. Power cable insulation
damage
5. Faulty power cable splice
RULE OF THUMB
Remember, there may be other
system problems caused by
auxiliary controls not covered in
this booklet.
Recommended Action
1. Allow motor to cool, ther-
mal protector will automati-
cally reset
a – e. Have a qualified elec-
trician inspect and repair,
as required
f. Pull pump, clean,
adjust set depth
as required
g. Confirm adequate unit
submergence in
pumpage
2. Have a qualified electri-
cian inspect and repair, as
required
3. Check supply or generator
capacity
4 – 5. Have a qualified electri-
cian inspect and repair, as
required
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