Liberty Pumps LSGX202-RE - Manual (Page 9)

©Copyright 2012 Liberty Pumps Inc. All rights reserved - 9 -
TROUBLESHOOTING CHART
SYMPTOM
1. PUMP WILL NOT START
2. REPEATED TRIPPING
3. PUMP WILL NOT SHUT
OFF
4. LOW FLOW
5. WATER IN OIL
CHAMBER
6. WATER INSIDE MOTOR
CASING
POSSIBLE CAUSE
A. Power supply failure
B. Burned out fuse or tripped
circuit breaker
C. Damaged power cable
D. Jammed impeller
E. Water inside motor
A. Circuit protection under-rated
B. Current unbalance
C. Pump connected to incorrect
voltage
D. Wet or damaged wiring
E. Obstruction in pump
F. Incorrect motor rotation
G. Foreign matter build-up
A. Control panel failure
B. Switch Failure
C. Pump does not meet pressure
requirements of the system
A. Incorrect pump rotation
B. Low liquid level
C. Obstruction in pump or piping
D. Partially closed valve(s)
A. Loose or damaged oil plug
A. Damaged lower lip seal or
mechanical seal
B. Damaged O-Ring between oil
chamber and motor plate
C. Damaged cable
ACTION
A. Check power supply
Check out electrical system
for loose connections
Check operating voltage
B. Check circuit protectors
C. Check external cable for
damage – replace
D. Inspect and remove jamming
object
E. Refer to Symptom 5 and 6
A. Check rating and replace with
proper size
B. Check current draw
C. Verify connections. See wiring
diagram
D. Inspect external cable,
replace if worn or damaged
E. Remove obstruction
F. Check rotation
G. Clean motor housing
A. Check control panel
B. Replace the switch
C. Use of high-pressure 2-stage
model (LSGX) may be
required. Consult factory
A. Check rotation
B. Check liquid level
C. Remove obstruction
D. Check and adjust valve
A. Check plug and sealing
washer
A. Replace seal
B. Replace O-Ring
C. Replace cable
IF SYMPTOMS CONTINUE, CONSULT THE LIBERTY PUMPS PRODUCT SERVICE DEPT. 1-800-543-2550