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Sum pump doesnot shut off automatically.frequent on off of sumpump.

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  • matt1605 Mar 08, 2009

    My switch gets stuck in the up position causing the pump to stay on for very long periods. How do you change the switch. Is this something you should call a pro to do? Or can I go to a home improvment store and buy it and change it?

  • cvcduty Apr 20, 2009

    I have a pedestal type sump pump and the motor won't shut off... The float is not stuck as it moves the switch arm freely up and down. I had it unplugged for the time being. Can this be repaired? Or, do I need to replace the whole unit? Mine is fairly new... maybe only about two years old. I wonder what the warranty is on these things. I am going to see if I can take it out to see that there is nothing stuck inside that activates the the pump even when there is not water... hmm...

  • Joel Wiedeman May 11, 2010

    Do you have a check valve installed?

  • tom May 11, 2010

    Check to see if the float is stuck.if the float is constantly up it will keep running. some pumps have an adjustable float.


  • Scott Jelt
    Scott Jelt May 11, 2010

    What type of pump is it? A submersible meaning it is all under water. A pedestal meaning the motor is out of the water usually up a foot or two above the floor.


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Check the sump hole to see if indeed water coming into the hole is activating the switch and the pump. If that is not the case, your switch may need to be replaced. good luck

Posted on Jan 24, 2009

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The pump should start by itself and shut off by itself as well. The float switch needs replacing. If new, return it. If you want to test the pump, separate the two plugs and plug in the one that leads to the main pump body.

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Pump will not shut off even when water level is down.

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My sump pump wont kick off. There is no water in the sump and the float is fine, but the motor won't shut off. I unplugged the pump as to not burn up the motor, and thinking it may reset itself, but when...

Hello, the pump motor is controlled by the float switch. If your motor is running constantly even when you move the float switch around, then I would say that either the switch is shorted internally, or the wires going to the switch are shorted, thusly causing the motor to run. Is the float on a separate adapter to the pump, or is it wired into the pump?

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The high level water alarm intermittently beeps and the pump starts and stops several times before clearing out the water

On the controls to the pump there is a float, or 2 floats that control wheather the pump is on, or off. I don't know wheather this one has one float or 2 so i will give a short explanation for either fix.

Little giant usually has 1 float on a length of cord, or 1 float with a rigid frame that it goes inside, or has a guide rod. No matter which system is employed there is a built in dead band for the interval between when the pump turns on at a high level, and when it shuts off at a low level. If the float is on a rod, or in a cage it needs to be able to move freely. There is a method to control the turn on height, and the turn off height with some little clamps that connect to the switch. So when the liquid level gets high the pump turns on, and then when the liquid level gets to the lower limit the pump automatically shuts off. If these little keepers are right near the top of the float, and right near the bottom of the float then as soon as the pump turns on the liquid level drops just a bit, and the dead band is real small, so it just shuts right off. the liquid flows backward through the pump and then it turns back on, ect... If this is the case move the adjustments that surround the float. Presto.

If it has a little float on a cord then the adjustment for the level needs to be secured to the discharge pipe or something. It has a mercury switch inside the float to turn it on, and probably another to turn it back off when the float goes to a desired level just above the suction at the base of the pump. I would use black zip tie's to hold the cord so that the desired "turn on the pump level", and the propper "turn off the pump level" are what you want. Just hold the cord against the discharge pipe so that the float is above the suction opening to the pump, and the strait up level of the float are what you want.

If it has 2 floats on cords then one of the floats will turn the pump on if both are held upright by the liquid level. This float must be the top float that is mounted on the discharge pipe. If the 2 floats are mounted in the reverse position then the pump will cycle quickly. There will be a nearly nonexisting dead band. Both will be upright but the control circuit will shut the pump off when the top float, which should be on the bottom, lowers even slightly. Use the same method as perscribed above to attach the floats. The one that belongs on the bottom, the one that turns the pump off, should be placed so that the pump will shut off before it tries to pump air. the top float will turn the pump on if it and the lower float are both upright.


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Pumb only pumps a small amount out of the basin. Float needs adjusting to go all the way down and empty the basin. How do you adjust the float/bulb to travel farther down without shutting off after only a...

Flotec website shows several submersible sump pumps, and pump types:

Click product, then click on 'parts and literature' to access manual
Here is a Flotec manual:

Manual for this type of sump pump says:
Quote from manual: Automatic float switch is sealed and factory adjusted for
most home sumps. Turn-on water level is 10" - 12" above
pump base. Turn-off water level is 4" - 6".

The manual also says that running the pump when dry will ruin the seals.
This implies that the water level setting is set so the seals will not be damaged

You might be able to dig the sump deeper, but I don't know if that meets your objective.

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Sump pump float adjustment

This really depends entirely on you. the higher the water level the less frequently it will run. most motors use more power to start than they do to run so starting less should save you money.

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Can you replace the switch? If not, you can wire in a new generic float switch for far less than purchasing a new pump. A decent hardware or electrical supply house should have a float switch and they should be able to help you wire it or you can Google float switch installation to get an idea of how to do it yourself (it is not too complicated).

i hope this helps

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My pump does not shut off when the float switch goes down

Good Morning -
I had the same problem with a freind's pump that used a free floating pump switch, first of all the sumpump hole was just barely large enough to accomadate a sump pump, I removed that pump and installed a sumpump that hat a short float connected to the top and bottom of the pump housing and my friend has had no problem.
I did build a short device to make sure the pump as'y stayed in that corner out of 2"pvc.
have a great day!!


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