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1. Remove the rubber plug on the basin cover in order to observe switch operation.
2. Plug the power cord into a grounded receptacle with voltage indicated on the pump nameplate.
3. Be sure the gate valve in the discharge line is open.
4. Run water into the basin until the pump is activated.
5. Make sure the pump and its float switch are functioning as intended.
• Confirm that no potential obstructions exist that could inhibit switch operation.
• Verify the ON/OFF levels are within specification.
6. Confirm that there are no leaks in the pump discharge plumbing and main home drain pipe plumb-
ing.
7. Allow the pump to operate through several ON/OFF cycles.
Testing the Piggyback Plug
Use an ohmmeter to check for continuity between the
incoming and outgoing connections of the piggyback plug
while raising and lowering the float.
Testing the Diaphragm Switch
The suction causes the switch diaphragm to draw inward, activating the switch inside the switch hous-
ing. When syringe is released, the diaphragm returns to its original position deactivating the switch
inside the switch housing.
NOTE: This test is recommended for bench testing only.
1. Squeeze the bulb of a suction bulb syringe to create suction.
2. Insert the small end of the syringe into the breather tube of the power cord
or stripped end of the power cord.
3. Release the bulb to induce suction/vacuum.
4. Listen for the switch to make a click sound.
5. Once the suction/vacuum equalizes, listen for the diaphragm switch to release.
OPERATION TESTING
Testing Automatic Pump Operation
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