Water leaks from the side of my Little Giant 6EC/10EC pump, is this normal?

  • Yes, it is normal for water to leak from the side of the Little Giant 6EC/10EC pump. This is an air bleed hole to help prevent the pump from getting air lock.  

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What oil goes inside the Little Giant 6EC/10EC pump?

Use 20 oz. of Dielectric oil inside the Little Giant 6EC/10EC pump.

What is the HP of the Little Giant 6EC/10EC pump?

The HP of the Little Giant 6EC/10EC pump is 1/3 HP.

How high can the Little Giant 6EC/10EC pump?

Refer to this graph to see how high the Little Giant 6EC/10EC pump can pump.

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Why does the float switch on the Little Giant 6EC/10EC pump go all the way up, but the pump does not turn on?

There are two possible reasons the float switch on the Little Giant 6EC/10EC pump goes all the way up but does not turn the pump on:

  • Ensure there is nothing blocking the float from going all the way up.  
  • The float assembly needs to be replaced, because it is not pushing the pump to the ON position.

Do I need to drill a separate air bleed hole if the Little Giant 6EC/10EC pump already has one?

If one air bleed hole in the Little Giant 6EC/10EC pump gets clogged, then yes, drill another hole.

Why does the Little Giant 6EC/10EC pump hum, but the impeller does not spin?

There are two possible reasons the Little Giant 6EC/10EC pump hums but the impeller does not spin:

  • The pump could be clogged.  
  • The motor or the capacitor could be going bad.
    • If so, replace the pump.

Why does the Little Giant 6EC/10EC pump turn on and the impeller spins, but it does not discharge water?

There are a few possible reasons why the Little Giant 6EC/10EC pump turns on and the impeller spins but it does not discharge water:

  • The pump is air locked.  
  • There is blockage in the discharge line.  
  • The check valve could be installed in the wrong direction or not opening.  
  • Head/vertical pumping height is too high for the pump.
  • For more information, review the troubleshooting section of the owner’s manual.

Why does the switch on my Little Giant 6EC/10EC pump activate, but the pump does not turn on?

There are a few possible reasons why the switch on thes Little Giant 6EC/10EC pump activates, but the pump does not turn on.

  • Ensure proper voltage supply.
  • Ensure the ground fault has not tripped.
Our Brand Promise

There’s a reason we’ve been the go-to pump for HVAC, Plumbing, Pool, and Hydroponics professionals for generations: experience. For 80 years, Little Giant® products have stood the test of time, pumping a steady flow of proven reliability in the most demanding applications.