Xylem IM163 R01 Wastewater Pumps Dewatering, Effluent an User Manual download pdf (Page 9)

TROUBLESHOOTING

FAILURE TO DISCONNECT AND LOCKOUT ELECTRICAL

POWER BEFORE ATTEMPTING ANY SERVICE CAN CAUSE

SHOCK, BURNS OR DEATH.

SYMPTOM PROBABLE CAUSE RECOMMENDED ACTION

MOTOR NOT RUNNING Motor thermal protector tripped. Allow motor to cool. Insure minimum pump

submergence. Clear debris from casing and impeller.

Open circuit breaker or blown fuse. Determine cause, call a qualiﬁed electrician.

Pump impeller binding or jammed. Check motor amp draw. If two or more times higher

than listed on pump nameplate, impeller is locked,

a) Manual operation Power cable is damaged. motor bearings or shaft is damaged. Clear

Inadequate electrical connection

debris from casing and impeller, consult with dealer.

in control panel.

Resistance between power leads and ground should

b) Automatic operation No neutral wire read inﬁnity. If any reading is incorrect, call a

connected to control panel. qualiﬁed electrician.

Inadequate electrical connection Inspect control panel wiring. Call a qualiﬁed

in control panel. electrician.

Defective liquid level switch. With switch disconnected, check continuity while

activating liquid level switch. Replace switch, as

required.

Insufﬁcient liquid level to Allow liquid level to rise 3" to 4" (76 mm - 101 mm)

activate controls. above turn-on level.

Liquid level cords tangled. Untangle cords and insure free operation.

PUMP WILL NOT Liquid level cords tangled. Untangle cords and insure free operation.

TURN OFF

Pump is air locked. Shut off pump for approximately one minute, then

restart. Repeat until air lock clears. If air locking

persists in a system with a check valve, a

⁄

" (4.8 mm)

hole may be drilled in the discharge pipe approximately

2" (51 mm) above the discharge connection.

Inﬂuent ﬂow is matching pump’s Larger pump may be required.

discharge capacity.

LITTLE OR NO LIQUID Check valve installed backwards, Check ﬂow arrow on valve and check valve

DELIVERED BY PUMP plugged or stuck closed. operation.

Excessive system head. Consult with dealer.

Pump inlet plugged. Inspect and clear as required.

Improper voltage or wired Check pump rotation, voltage and wiring.

incorrectly. Consult with qualiﬁed electrician.

Pump is air locked. See recommended action, above.

Impeller is worn or damaged. Inspect impeller, replace as required.

Liquid level controls defective Inspect, readjust or replace as required.

or improperly positioned.

PUMP CYCLES Discharge check valve inoperative. Inspect, repair or replace as required.

CONSTANTLY

Sewage containment area too small. Consult with dealer.

Liquid level controls defective or Inspect, readjust or replace as required.

improperly positioned.

Inﬂuent excessive for this size Consult with dealer.

pump.

NOTE: If circuit breaker

“OPENS” repeatedly,

DO NOT reset. Call

qualiﬁed electrician.

NOTE: Check the pump

in manual mode ﬁrst to

conﬁrm operation. If pump

operates, the automatic

control or wiring is at fault.

If pump does not operate,

see above.

WARNING

Hazardous

voltage

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Xylem IM163 R01 Wastewater Pumps Dewatering, Effluent an User Manual Page 9

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