Question about Bosch 24 in. SHU43 Built-in Dishwasher

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Bosch shu43 the pump seems to be making the noise that is at at start up? very loud after it is filling with water it is good until it needs to drain?

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Sounds like your impeller/motor is going bad or something is stuck in that area.

Posted on Jun 25, 2008

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1 Answer

No water getting into machine


It's very possible that the water valve is faulty, we do see it on this dishwasher but also if water gets into the area of the drain pump it may code out do to thinking it has a leak and won;t fill either.

Jan 28, 2014 | Bosch 24 in. SHU43 Built-in Dishwasher

1 Answer

When the dishwasher starts or when water starts to enter dishwasher there is a loud noise.


ther could be something stuck n your drain pump.
the way it works is first the unit drains,the it fills,then it start to wash. now if you hear this noise after it drains then it could be your water valve or after it fills when it starts to wash it could be your circulation pump. it depends on what cycle you hear the noise. let me know if this help by posting 4 thumbs up for this answer, thanks

Feb 28, 2010 | Bosch 24 in. SHE44C02UC / SHE44C06UC /...

1 Answer

Bosch SHU 43C06 UC17 dishwasher the dishwasher is just draining with no water in the tub, and is not filling, it does not seem to begoing out of drain mode


water in the bottomof the base remove side panel and dry out the bottom base . the float is up . thats why its in drain mode. bosch old tech speaking.

Oct 10, 2009 | Bosch 24 in. SHU43 Built-in Dishwasher

1 Answer

Shu43c Drain pump is very loud! This's supposed to be a quiet one


Drain pumps are relativley cheaply manufactured with basic technology, we can not even determine which way they spin, if something got into the pump it could be creating the noise, otherwise it could be the pump itself which will detereate over time, also if these run dry they seam to make more noise.

Nov 21, 2008 | Bosch 24 in. SHU43 Built-in Dishwasher

1 Answer

Bosch SHX46A02UC-21


float switch is in the flood position and the drain pump is running.. there is water under the dishwasher or that switch is stuck up..

Aug 19, 2008 | Bosch 24 in. SHU43 Built-in Dishwasher

1 Answer

Bosch SHU43C installed in 2003


My Bosch SHU43C had the same exact problem. I found the below solution on this site. Perhaps you already seen it.

My SHU43C is just over 3 years old. I had a similar problem recently. First, there were a few floods. Then, the Bosch only drained non-stop. Even when I used the Cancel Drain buttons the drain pump would run without stopping. When I tried to run one of the cleaning cycles, no water entered the machine. Corrective: I removed the base plate, and saw that the red plastic floatation device was in the up position. Using a flashlight and a wooden spoon, I lightly toggled the red float stem down. I pushed regular clean cycle and kept toggling with the red float stem until the rinse water started to enter the machine (turning the red stem seems to also actuate a step in the program). Now the dishwasher runs normally. Voila!

Aug 07, 2008 | Bosch 24 in. SHU43 Built-in Dishwasher

2 Answers

Bosch SHU43C


My SHU43C is just over 3 years old. I had a similar problem recently. First, there were a few floods. Then, the Bosch only drained non-stop. Even when I used the Cancel Drain buttons the drain pump would run without stopping. When I tried to run one of the cleaning cycles, no water entered the machine. Corrective: I removed the base plate, and saw that the red plastic floatation device was in the up position. Using a flashlight and a wooden spoon, I lightly toggled the red float stem down. I pushed regular clean cycle and kept toggling with the red float stem until the rinse water started to enter the machine (turning the red stem seems to also actuate a step in the program). Now the dishwasher runs normally. Voila!

Jun 22, 2008 | Bosch 24 in. SHU43 Built-in Dishwasher

2 Answers

Noisy Bosch dishwasher SHU43C05UC


your main wash motor is faulty it must be replaced.

May 05, 2008 | Bosch 24 in. SHU43 Built-in Dishwasher

2 Answers

SHU43 running constantly


Intrrnal leak into base of appliance will make drain pump run constantly.
If appliance fills then dumps water with drain punp then keeps filling/draining sequence then the flow meter could de faulty.
Call in engineer.
Paul Winn Appliance Services (Cumbria)

Apr 02, 2008 | Bosch 24 in. SHU43 Built-in Dishwasher

1 Answer

Dishwasher running with door open


most dishwashers will stick on pump if there is water in he base of the dishwasher . If you tilt the washer back only about 45 degs and water runs out of the back at the bottom the you have a leak but it could come from any where. But when there is no water in the base then your washer should start to work again until it fills back up

Dec 11, 2007 | Bosch 24 in. SHU43 Built-in Dishwasher

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