Question about Little Giant 5-MSP Water Wizard Submersible Pump, 1200 GPH

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My little giant just stopped working, impeller turns ok by hand, no blockage, 110v to outlet ok. Always under water, never ran dry... Walter

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Inside the pump on the motor is a thermal cut out if the motor has over heater from running a long time the cut out pops and it may not pop back in again? its that or there is a motor fault like brushes worn out

Posted on Aug 28, 2010

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Posted on Jan 02, 2017

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I have an external little giant water pump 3qxmd nothing wrong with pump motor hums not turning can ot be fixed it it 110v


Unplug and try freeing up the impeller by hand. You may have to remove bottom of pump to gain access.

Feb 15, 2017 | Little Giant Plumbing

1 Answer

My pump is running but not sucking up water


well if possible look into suction screen and see if Impeler is turning , I'll bet not , most of the lil giants come with a easy to remove pump cover (screw) so one can access the pump cavity to remove forign debris , also one can manually rotate impeller with finger (unplugged) to ck for free movement , if its hard to move your pump needs replacement

May 10, 2014 | Little Giant Submersible Fountain Pump

1 Answer

My pump is on but its not pumping water. What do i do?


Has your pump lost prime? If so prime it. Never run a pump dry.
Is your impeller turning? Is the impeller worn out? Check these things first. Also, make sure the intake to the pump and all the piping to the pump are clear and not clogged.

Feb 17, 2011 | Little Giant 3 Md Pump Head Less Motor

1 Answer

I turned off pump to do maintenance to tank and pump will not restart ,i have power to pump ,removed fin cover and manually turns fine no play in bearing ,any solutions


Is this pump,. one of those flexible impeller pumps?
They can not be run dry-- So-- can you lubricate the flex. impeller with something slippery, and compatible with what you are circulating-- or pumping. (Not drinking water, or a fish tank, right?)

If this is a regular centrifugal pump, is it possible that something is caught between the impeller and the housing, when it is all tightened up?-- can you turn the impeller by hand, thru the inlet opening?
Will the motor start it with the housing removed?

Give us some more clues, and we'll dig deeper.

Mack B

Jan 29, 2011 | Little Giant 4 Md Sc Pump Head Less Motor...

1 Answer

I cleaned the screen, and the impeller is working however the little giant pump WGP is still not pumping water.


You may need to take the bottom of the pump apart and check to see if any thing has gotten through the screen and clogged the impeller.

Nov 27, 2010 | Little Giant WGP-65-PW 1/8 HP, 1900 GPH...

1 Answer

Truck is running hot. Relaced thermasta and still runs the same. Noticed the top hose gets real hot while the bottom one doesnt. Dont get it.


The cooling water doesn't seem to making it through the radiator. Look for plugged radiator, blocked upper or lower hose, or ineffective water pump. Remove the inlet and outlet hose after draining coolant from the radiator. Hold your hand over the lower hose outlet while someone fills the radiator with cold water. When full, leave the cap off, then remove your hand from the outlet. If the core is unobstructed, the water will rush through it in a few seconds. Check the upper hose inlet--there should be no obstruction. Inspect the interior of each hose looking for collapse or other blockage. If ok, that leaves the water pump--remove it from the engine and check that the impeller turns solidly with the driving pulley. Any looseness there is grounds for replacement. Hope some of this helps!

Jun 29, 2010 | 2004 Dodge Ram 1500

1 Answer

My little giant water pump model 4mdsc has three


Sounds like you may have a 220V pump. So you need to confirm that this is a 110V pump and not a 220V pump. There should be a label or more info on line with any other info on the label. If you can confirm that this is a 110V pump, then put a standard plug on the cord - the green is ground and the other two can be wired to either blade of the plug. If you do have a 220V pump and you connect it to 110V anyway, the pump will perform poorly and will probably overheat and fail.

Jun 25, 2010 | Little Giant SPS25 Water Removal System...

1 Answer

Dishwasher will not fill up.


Set the controls to off then power off at the mains for 30 mins and then power mains back on and run a drain program or a full wash program. If the water won’t drain away then the most likely problems are the door interlock switch is faulty, the drain water motor is faulty, there is a blockage in the drain outlet pipe or filter – this will need unblocking, there is a blockage in the water pump – this will need to be unblocked, the controller board is faulty – but this generally shows an error code. First turn off the mains power to the dishwasher then check the internal filter and screen and clean it thoroughly. Then check the waste water hose and any outlet valve and make sure that it is unblocked and free of any obstruction or waste material. If you have access to the water pump you can check that it is free of obstruction and is able to turn and that none of the impeller vanes have been damaged. Then if all this is OK then try turning on the mains power and running a hot wash cleaning cycle to flush out any remaining sludge / debris.

If the outlet pipe is clear and the pump motor is turning and there is no pump damage then there has to be a blockage somewhere. You could lay the out pipe flat on the ground with the end draining into a tray to see if any water actually does come out. If it does then you do not have a total blockage. This is because it will be most likely draining out of the machine due to gravity and shows that there may be a partial blockage of the pump is defective even though the motor may be running. You will need to remove the pipes to and from the pump to check for blockages and also remove the pump to inspect for damage to the impeller or a blockage in the pump housing where the hoses connect. If the pump housing is clear and the impeller can be turned freely with your fingers then the direct coupled or belt driven linkage between the motor and the pump is the most likely broken and will need repair or replacement. If the impeller cannot be turned easily and does not turn with the motor running then the impeller or the direct linkage is either seized or broken and will need replacing. If your pump and impeller is belt driven then check that the belt is not slipping – this will normally result in increased noise and a possible smell of burning rubber

Dec 30, 2009 | Bosch 24 in. SHU43 Built-in Dishwasher

1 Answer

Water remains at bottom after dish cycle is complete . Dishes come out clean and everything seems normal except for the water that remains at the bottom of the dish washer. I realize that a small amount of...


Set the controls to off then power off at the mains for 30 mins and then power mains back on and run a drain program or a full wash program. If the water won’t drain away then the most likely problems are the door interlock switch is faulty, the drain water motor is faulty, there is a blockage in the drain outlet pipe or filter – this will need unblocking, there is a blockage in the water pump – this will need to be unblocked, the controller board is faulty – but this generally shows an error code. First turn off the mains power to the dishwasher then check the internal filter and screen and clean it thoroughly. Then check the waste water hose and any outlet valve and make sure that it is unblocked and free of any obstruction or waste material. If you have access to the water pump you can check that it is free of obstruction and is able to turn and that none of the impeller vanes have been damaged. Then if all this is OK then try turning on the mains power and running a hot wash cleaning cycle to flush out any remaining sludge / debris.

If the outlet pipe is clear and the pump motor is turning and there is no pump damage then there has to be a blockage somewhere. You could lay the out pipe flat on the ground with the end draining into a tray to see if any water actually does come out. If it does then you do not have a total blockage. This is because it will be most likely draining out of the machine due to gravity and shows that there may be a partial blockage of the pump is defective even though the motor may be running. You will need to remove the pipes to and from the pump to check for blockages and also remove the pump to inspect for damage to the impeller or a blockage in the pump housing where the hoses connect. If the pump housing is clear and the impeller can be turned freely with your fingers then the direct coupled or belt driven linkage between the motor and the pump is the most likely broken and will need repair or replacement. If the impeller cannot be turned easily and does not turn with the motor running then the impeller or the direct linkage is either seized or broken and will need replacing. If your pump and impeller is belt driven then check that the belt is not slipping – this will normally result in increased noise and a possible smell of burning rubber.

Dec 28, 2009 | Whirlpool Dishwashers

1 Answer

My bosch diswasher is 2 months old and now the water doesn't drain. how can i fix it


Set the controls to off then power off at the mains for 30 mins and then power mains back on and run a drain program or a full wash program. If the water won’t drain away then the most likely problems are the door interlock switch is faulty, the drain water motor is faulty, there is a blockage in the drain outlet pipe or filter – this will need unblocking, there is a blockage in the water pump – this will need to be unblocked, the controller board is faulty – but this generally shows an error code. First turn off the mains power to the dishwasher then check the internal filter and screen and clean it thoroughly. Then check the waste water hose and any outlet valve and make sure that it is unblocked and free of any obstruction or waste material. If you have access to the water pump you can check that it is free of obstruction and is able to turn and that none of the impeller vanes have been damaged. Then if all this is OK then try turning on the mains power and running a hot wash cleaning cycle to flush out any remaining sludge / debris.

If the outlet pipe is clear and the pump motor is turning and there is no pump damage then there has to be a blockage somewhere. You could lay the out pipe flat on the ground with the end draining into a tray to see if any water actually does come out. If it does then you do not have a total blockage. This is because it will be most likely draining out of the machine due to gravity and shows that there may be a partial blockage of the pump is defective even though the motor may be running. You will need to remove the pipes to and from the pump to check for blockages and also remove the pump to inspect for damage to the impeller or a blockage in the pump housing where the hoses connect. If the pump housing is clear and the impeller can be turned freely with your fingers then the direct coupled or belt driven linkage between the motor and the pump is the most likely broken and will need repair or replacement. If the impeller cannot be turned easily and does not turn with the motor running then the impeller or the direct linkage is either seized or broken and will need replacing. If your pump and impeller is belt driven then check that the belt is not slipping – this will normally result in increased noise and a possible smell of burning rubber.

Dec 28, 2009 | Bosch Dishwashers

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