Xylem IM117 R01 5 and Larger Submersible Pump - Manual (Page 16)

16
WARNING
Hazardous voltage
can shock, burn or
cause death.
TROUBLESHOOTING
DISCONNECT AND LOCKOUT ELECTRICAL POWER BEFORE ATTEMPTING ANY SERVICE. FAILURE
TO DO SO CAN CAUSE SHOCK, BURNS OR DEATH.
Symptom Probable Cause Recommended Action
PUMP MOTOR
NOT RUNNING
LITTLE OR
NO LIQUID
DELIVERED
BY PUMP
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
1. Allow motor to cool, thermal protector will
automatically reset
a – e. Have a qualified electrician 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 electrician inspect and repair,
as required
3. Check supply or generator capacity
4 – 5. Have a qualified electrician inspect and
repair, as required
1. Faulty or incorrectly installed check valve
2. Pump air bound
3. Lift too high for pump
4. Pump bound by foreign matter
5. Pump not fully submerged
6. Well contains excessive amounts of air or gases
7. Excessive pump wear
8. Incorrect motor rotation – three phase only.
1. Inspect check valve, repair as required
2. Successively start and stop pump until flow is
delivered
3. Review unit performance, check with dealer
4. Pull pump, clean, adjust set depth as required
5. Check well recovery, lower pump if possible
6. If successive starts and stops does not remedy,
well contains excessive air or gases
7. Pull pump and repair as required
8. Reverse any two motor electrical leads
TROUBLESHOOTING