Maintenance And Troubleshooting - Liberty Pumps SPAC-237 Manuel D'installation

3. Maintenance and Troubleshooting

Each unit is individually factory tested to ensure proper adjustment and operation. If the unit fails to operate properly, carefully re-read
the instructions and check that they have been followed correctly. Routine maintenance is not required on the pump itself, but
associated connections may require occasional attention. Lint and other foreign objects should be removed from the basin periodically.
 NOTE: Liberty Pumps, Inc. assumes no responsibility for damage or injury due to disassembly beyond float removal in the field.
Disassembly, other than at Liberty Pumps or its authorized service centers, automatically voids warranty.
Problem
Pump will not turn on
Pump runs or hums
but does not pump
Pump does not turn off
Pump sprays water
from side of housing
Pump operates noisily
Cause
Blown fuse or other interruption of

power; improper voltage.
Defective switch or build-up on tank

wall restricting free movement of
float switch.
Discharge is blocked or restricted.

Check valve is stuck closed or

installed wrong.
Total lift height has been reached

(see Fig. 2)
Pump impeller is jammed.

Defective switch.

Defective switch or build-up on tank

wall restricting free movement of
float switch.
This is normal due to factory drilled

air-bleed hole
Foreign objects in impeller cavity.

Broken impeller

©Copyright 2013 Liberty Pumps Inc. All rights reserved
Correction
Check that the unit is securely plugged in.

Have an electrician check all wiring for proper
connections and adequate capacity.
Check that float is free to move. If build-up

restricts float, clean and reinstall. Otherwise,
consult factory.
Check the discharge line for blockage, including

ice if the line passes through or into cold areas.
If present, remove and examine for freedom of

operation and proper installation.
Try routing pipe to a lower level. If not possible,

a larger pump may need to be installed in the
basin.
*Disassemble the receiver and bottom base of

pump. Remove foreign material. Reassemble.
Check that float is free to move. If build-up

restricts float, clean and reinstall. Otherwise,
consult factory.
Check that float is free to move. If build-up

restricts float, clean and reinstall. Otherwise,
consult factory.
No action required

*Disassemble the receiver and bottom base of

pump. Remove foreign material. Reassemble.
Consult the factory for information regarding the

replacement of impeller.
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