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HP LSG202M User Manual

Page 9

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©Copyright 2008 Liberty Pumps Inc. All rights reserved

- 9 -

TROUBLESHOOTING CHART: LSG200

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

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

– repair

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

A.

Clean motor housing

B.

Check control panel

C.

B. Replace the switch

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.

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