Maintenance And Troubleshooting - Liberty Pumps HT40Série Manuel D'installation


Risk of electric shock. Always disconnect the pump from the power source before handling or making adjustments.

This pump is supplied with a grounding conductor and grounding-type attachment plug. To reduce the risk of electric shock, be
certain that it is connected only to a properly grounded, grounding-type receptacle. This receptacle should be protected by a
ground fault circuit interrupter (GFCI

Never remove the ground pin from the plug.

Do not use an extension cord.

All electrical circuitry should be installed by qualified personnel in accordance with the National Electric Code (NEC) and all
applicable local codes or ordinances.

This pump requires separate, properly fused and grounded branch circuit. Make sure the power source is properly sized for the
voltage and amperage requirements of the motor, as noted on the pump nameplate.

The electrical outlet or panel shall be within the length limitations of the pump power cord, and at least 4 feet above floor level to
minimize possible hazards from flood conditions.
If the pump is to be wired directly into a control device or junction box,
and it is necessary to remove the plugs, have a certified electrician do
the wiring in accordance with the National Electric Code and applicable
local codes. See Fig. 2 for direct wire installation of single phase
automatic pumps.

3. Maintenance and Troubleshooting

Risk of electric shock.
adjustments.
Problem
Pump will not run.
Pump will not turn
off.
Always disconnect the pump from the power source before handling or making
Cause
Blown fuse or other interruption of

power; improper voltage.
Switch is unable to move to the

"turn on" position due to
interference with the side of basin
or other obstruction
Insufficient liquid level.

Defective switch.

Switch(s) unable to move to the

"turn off" position due to
interference with the side of basin
or other obstacle.
Defective switch.

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Fig. 2 – Direct Wiring of 115V or 208-230V,
Single Phase, Automatic Pumps
Correction
Check that the unit is securely plugged in.

Have an electrician check all wiring for proper
connections and adequate voltage and
capacity.
Position the pump or switch so that it has

adequate clearance for free operation.
Make sure the liquid level is allowed to rise

enough to activate switch(s).
Remove and replace switch.

Position the pump or switch so that it has

adequate clearance for free operation.
Remove and replace switch.

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