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How do I remove the circulation pump? - Bosch SHU9925UC Built-in Dishwasher

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You need to get to the base of the washer by loosining the pannels (back and side and top). The hose clamps (in and outlet must be disconnected) and the electrical push on connectors disconnected. Make sure you note the positions and colors of the wires. Mostly a very tight fit and some turning and twisting is nesessary before they come out..

Posted on Jun 01, 2010

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Posted on Jan 02, 2017

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How can you tell the water pump is bad?

You should be able to remove radiator cap and see the fluid circulating in the radiator, if there is no circulation then the pump is possibly bad.

Feb 16, 2015 | 2001 Chrysler PT Cruiser


L.G E1 Error / Whistling Sound In this Tip I will show you how to fix it. This...

L.G E1 Error / Whistling Sound

In this Tip I will show you how to fix it. This error is not to be confused with the 1E error, as this means something completely different.


- Circulation Pump (P/N: 5859DD9001A) * I will use "Circ. Pump" when referring to it. Get it from your nearest appliance spare shop.
- Screw Driver (Star/Phillips)
- Towel
- Pointed Object (Flat Screwdriver is best)
- Patience


E1 is showing on the LED Panel. In most cases this is accompanied with a whirring/whistling sound from the Dishwasher. This solution will also solve motor noises as described above.


There is an excessive or low amount of RPM picked up on the Circ. Motor Impellers during wash cycle. The reason for this is a water leakage on the Circ. Motor. The seal basically got worn, and water came through to the motor shaft leading to the bearings, thus the whistling sound (if any):


The only way to repair this error correctly is to replace the Circ. Pump.


Firstly check for any leakages on the hoses or plastic covers, especially the hoses & covers directly connected to the Circulation Pump, any leakages will also trigger this error code. Check the below mentioned "Accessing the Circulation pump" instructions, for easy access to the Circulation Motor.


STEP 1 (Accessing the Circulation Motor)

Firstly, remove the Inlet hose from the unit, and position it in an area where you would be able to lay it on its side. Then drain all water from the dishwasher, this can be done by placing the Drainage hose on the floor (either into a low bucket or out the back door).

Then remove the Top Table (The "roof" of the dishwasher), this can be done by removing 2 to 4 screws at the back -this may vary from model to model:


Remove the Right hand Panel, you will need to open the door for the front screws - See attached pictures:


You then need to close the door, and remove the bottom cover panel, there will be 2 more screws here:


You can now remove the Right hand Panel and you should see the following:


Now, put the towel on the Left side of the machine, you are going to tilt the dishwasher to its side, and water will likely leak out on that side.

Lift up the insulation material, and then lean the dishwasher back so that it is laying on the Left Panel:


Again some screws would need to be removed from the Base Cover, see pictures:


STEP 2 (Removing the Circ. Motor)

Now you have to stretch the Base Cover to allow yourself some more space to remove the Circulation Pump. To do this, insert your flat end into the Jimmy Space (Shown on the previous picture), use this in a crowbar like action, to give you some extra space - Beware not to break the plastic!

Remove the Screw mounting the Circulation Pump to the Base Cover:


Disconnect the Power cord to the Circulation Pump:


Then remove the Mounting piece, and twist and pull out the Circulation Pump from its nesting area, be careful not to break fittings or move other components (Especially the Sump) while pulling the Circulation Pump free:


The sump as seen above must not be showing more than 2 mm of silver lining, if it does, it means the sump has shifted too much, and leakages is almost a certainty. YOU DO NOT WANT THIS TO HAPPEN :-)

With the Circ. pump removed, you can now easily insert a new one, and use the reverse of my instructions to finish the job.

Just another quick note:
Sometimes the mounting supplied is different than the one that was in the machine, always fit the new one.


That is it! Re-attach the hoses and water, connect the dishwasher to power. Test it and viola, the E1 error is no more, and any whistling sound that may have been there is now a distant memory.


Even though this is accomplish-able by yourself, no person would disagree that an experienced and qualified technician will be able to do it more accurately and without further damages to your appliance.

Experience is what you got by not having it when you need it. ~Author Unknown

Thanks for reading my Tip.

on Jul 06, 2011 | Dishwashers


Heating Circulating Water Pump Problems

Changing your circulator pump is not always an easy process.
I will attempt to explain some of the possibilities for changing out a circulator pump. First of all I would recommend that if you are reading this and you do not have an extra circulating pump in the basement beside the boiler. That you stop by your local heating and air conditioning supply house and buy one. For under one hundred dollars it will be cheap insurance.

The very first thing you need to know is the water temperature in the boiler. If the water is hot, 140F or above than the problem is not the boiler. It is heating the water. The next thing will be to see if there is power coming to the circulator pump. Either take the electrical cover off of the circulator pump motor, or check for voltage at the source of the wire going to the circulator pump. If there is no voltage, usually 110 volts for the US, then you have to look at why the motor is not getting power. I will do another article on that issue at another time.

So now we have established that you have power coming to the motor. There is hot water in the boiler however the pipes going to the radiation are cold. The next thing to look for, are zone valves. They are little motorized valves that open and shut to direct the flow of heat to different parts of the house or building. It is possible that one of them could fail and the circulator pump is running and moving no water. Usually the circulator pump will be making a noise and often be very hot if this is the case. Of course then you need to check the zone valve. That, we will also cover later.

The first thing you need to do to change the circulator pump is to make sure that the electricity to the circulator pump motor is turned off. Verify that the power is off before touching the wires. The wires then need to be disconnected at the pump motor. Then the 4 bolts that hold the circulator pump in place need to be removed. Save these bolts, they may be needed to install the new pump. Carefully remove the pump from the flanges. A pry bar or screw driver may be needed to break the pump lose from the old flanges. Be careful of the motor, depending on the type of failure, the motor can be very hot.

If you had a responsible installer do your heating system, then you will have a valve in the piping on either side of the circulator pump. These valves will isolate the circulator pump from the rest of the heating system and changing the circulator pump will be fairly painless. If you do not have valves closed to the pump, then you will need to find the valves that will be the closest to either side of the pump and close them. For some older installs there may not be any valves and you will have to drain most of the water out of the system to change the pump.

This can get very complicated and professional help may be needed. The hardest part may be refilling the system and getting the air purged back out of the piping.

To install the new pump, clean the old gasket material from the flanges and install the new gaskets on the new pump. Carefully insert the new pump with gaskets into the flanges. Be careful not to damage the gaskets. Then install the 4bolts that hold the circulator pump in place. Tighten the bolts just so they are snug and not too tight. If they leak a bit you can always make them a bit tighter to stop the leak. Too tight may damage the gaskets. Hook up the wires to the pump motor again. Open the valves back up and check for leaks. Adjust bolts as needed. Apply power to the system and start the motor to check the operation of the circulator pump.

on Dec 24, 2009 | Heating & Cooling

1 Answer

Ice maker kitchen aid kuic18nnts won't pump water over chill plate. Replaced circulating pump still no water.


Does the circulating pump- pump water? Remove the hose that goes to the spreader bar and run the unit again, if it moves water as a new pump should check for blockages in that hose and spreader tube. Get back to me if this doesn't work please. Personal email address

Jul 21, 2014 | KitchenAid KUIS18NNT 18" Automatic Ice...

1 Answer

Dead circulation pump capacitor: I have an Asko

Capacitor should have a uF and voltage rating stamped on it. They are NOT a one-size-fits-all.
Always keep your Owners Manuals so you can use it to get parts. Without seeing it myself, the part will probably have to be replaced.
Sometimes you can find the manufacturer online and get parts through their website.
Possibly find this capacitor at an AC shop.

Oct 29, 2013 | Dishwashers

1 Answer

I have a 0011 BF4-J Taco circulating pump with a bad impeller, can it be replaced and how? Where can the new one be obtained with instructions to change it. Thank You

You have a Taco Cartridge Circulator pump. You cannot replace the impeller. You can buy a new cartridge on line and install it your self. Be sure the system is not pressurized. When you remove the motor and then the cartridge expect water to run out as it opens the water lines. If it was installed like I like to do there are two valves one at each end of the pump, close those then replace the cartridge, you will not spill much water that way.

Oct 24, 2013 | Taco 0011-BF4-J 0011 Circulating Pump

1 Answer

Pool pump motor runs but doesn't circulate the water

make sure the pump has been primed, all the valves are open and in the correct position, no obstruction in the skimmer.
if the pump is working but water still not circulating, the impeller may be clogged with debris. you will need to split the pump and use a shop vac to remove the crud in impeller fins.

Sep 25, 2013 | Hayward Pool & Spa

1 Answer

Need to trouble shoot circulator pump. Aquastat has power but need to figure out what is preventing circulator pump from kicking on.


Here is a tip that I wrote about heating circulator pump problems.
It will give you the information you need to learn about your circulator pump problems and solutions for it.

Heating Circulating Water Pump Problems



Dec 11, 2010 | Honeywell HE360A1027 Whole House...

1 Answer

Asko 1475 dishwasher - won't wash. Circulation pump?

Check your drain. It is dual purpose. It not only drains but, it also recirculates the water doring the cycles.

Aug 10, 2009 | Asko Dishwashers

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