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Little Giant Condesate Pump runs but won't pump

My Little Giant TP--15ULST won't pump. It runs constantly and if I tap on the top of it I can see (through the drain hose) that it essentially "primes" the pump. Then it works fine for a few pumping cycles and then it goes back to running but no pumping. I opened up the pump. The impeller is not connected to the shaft. Is this just supposed to connect by friction when water pushes up against the impeller or do I need to secure it somehow? Thanks! Scott

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  • Scott Long
    Scott Long Dec 28, 2013

    Not sure how this ended up under washing machines. The pump is for my gas furnace.



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It has to be connect

Posted on Dec 28, 2013

  • Scott Long
    Scott Long Dec 30, 2013

    I decided to super glue the shaft to the impeller and it has been working fine since then. You are right. They have to connect. Thanks for your suggestion.



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SOURCE: drain pump starts and stops prior to final spin cycle

Jayron, is the motor jogging? start to spin, stop, start to spin stop. If so, your motor is jogging between the high and low start windings. The motor during spin should start on the high speed windings and stay there until most of the water is drained. GE came out with a new motor, harness and run cap because of this. If you have a meter, there should be a white and white/red wire going to the motor. If you have a steady 120V and it's doing this jogging, replace the motor with the kit...Let me know if this the issue, back.

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SOURCE: W640 - Water Outlet Fault

I solved this problem this morning, after several months with intermittent "water outlet fault" error messages.

Our pin trap was cleared many times over the months. The propellor turned freely. However, the problem persisted.
So I unplugged the machine, removed the back panel (8 or so hex screws) and located the point where the drainage hose meets the water draining pump. I then separated the hose from the pump and found 2 United States 10-cent pieces lodged together with gunk that effectively blocked the drainage hose. 10-cent pieces ("dimes") are the perfect diameter to get stuck there and not appear in the pin trap where you could easily see and remove them.

Three loads later, the machine is working according to spec. Hope this helps.

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Condensate pump runs but does not pump

I have only seen a couple but they were pressed on the shaft. Superglue might work.

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My Little Giant pump (554405) is connected to our furnace/cac collecting condensation. It's been working fine for about 5 years. Now it keeps turning on for about 2 seconds and stopping only to repeat...

There could be gunk in the bottom....then the float does not work right and the pump will not pump either...

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This is happening to me, too: Model # VCMA-15ULS condensate removal pump switch suddenly began working backwards - it will go on when the float is down and shut off when the float goes up. What is the...

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I assume the unit is overflowing, because the pump is not running. Check th hose connection and be sure the line bringing the water into the pump is inserted in the opening. Can you hear the motor run? You can remove the top, and be sure the float switch is working and that the pump inlet is not clogged with debris. Sometimes you'll get mold and dirt mixed with water clogging the inlet. If the motor doesn't run, and the switch works, then it probably isn't worth fixing as you can buy these from 35.00--50.00

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Hi Tom (and Lindsay?),

Ok lets get a little more info,
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  5. Pull the pump and see if the intakes are clogged
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