Question about Bosch 24 in. SHU43 Built-in Dishwasher

1 Answer

I have a Bosch SHU 43c Dishwasher with a problem. Water does not seem to arrive. I hear the pump humming but no gurgling of water arriving. There is no water left in the dishwasher after the last wash(which has not been terribly clean over the last few cycles). I removed filters and protection plate to the propeller to check for any obstructing material and found only minor bits. The propeller is not damaged and spins easily. Checked the water line for kinks and looks OK. What should be my next steps for further trouble shooting? Should I try to pour water in the basin of the dishwasher to see if it drains? I suppose it will as the last cycle was successfully drained. Thanks for any help. Eric

Posted by on

  • trouillot_er May 25, 2011

    Thank you for your quick response Daniel. Where do I find the float switch? I do not have a blown diagram of the dishwasher. Would it be also possible that the float is stuck in a full position? How would I check that?

×

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 4,323 Answers

Hi
The issue seems to be with the float switch assembly that is bad and should be replaced. Float assembly is found inside the dishwasher's tub, on the bottom. The water that fills your dishwasher lifts the float, and when it reaches a certain level, it acts as a trigger for the float switch. The float triggers the float switch to shut off, thereby shutting off the flow of water into the dishwasher. A defective switch may interfere with your dishwasher's filling and/or draining ability.Use your voltmeter to test the switch. Set the device to the ohms setting x 1. Take each probe and touch them to one switch terminal each. This should produce a reading of either zero or infinity. Continue to touch the probes to the terminals, and press down on the switch's button. The reading should change to the opposite extreme. If your switch fails either of these tests, you should replace it. Hope this helps...please post back for further assistance.
Daniel

Posted on May 25, 2011

  • Daniel Scott
    Daniel Scott May 25, 2011

    You are right it can be stuck in upright position....you can also check this video for float switch test:


×

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Clogged Bosch SHU 9920 dishwasher


-Sounds like the pump is not working properly or the drain line you connect to sink directly instead to the breath cap before to the sink. Or the breath cap locate too low.
-Make sure the breath cap is mount higher than the line to the sink. (Or as high as possible) This is to prevent any water from the sink pour into the dishwasher.

Good luck

Mai

Jun 16, 2017 | Bosch 23 in. SHU 8805 Built-in Dishwasher

2 Answers

A few days ago our sink/garbage disposal was plugged up - plunged it and opened drain BUT dishwasher started humming and wouldn't fill up with water. Bosch Model SHU43C06UC Tried pushing on/off...


Check the drain pump it is located in the front of you unit .Disconnect power or flip breaker .Remove the front kick plate then there is a metal plate above that is held on with 4 screws remove that and reach in and press lever on pump and turn counter clockwise it will come right out .Then check for items in the pump area could be glass. Hope it is helpfull

Sep 18, 2011 | Bosch 24 in. SHU43 Built-in Dishwasher

1 Answer

Want drain or pump water


Hi,


Here is a tip that I wrote that will help you with your dishwasher not draining problem...

Dishwasher Problems -
Water will not drain out

heatman101

Dec 13, 2010 | Bosch 23 in. SHU 8805 Built-in Dishwasher

1 Answer

Shu3302uc/u12 will not pump out


It's most likely a seized pump impeller/motor bearings or a burnt-out pump motor. There are some simple tests for the pump that anyone can do:

A. If your washer is full of water:

1. Select a wash program and press start. You should hear a low humming noise. If you can't hear anything, you probably need a new pump, but try the next step before you start buying parts or call an engineer.

2. Open the door and pull the lower basket forward or lift it out completely. Find and lift the float (the plastic dome/mushroom in the bottom of the washer) all the way up. Keep the float lifted and the dishwasher should pump out. Stop if/when you hear a gurgling noise as this means it's empty and pumping mostly air.


B. If your washer is empty of water:

1. Select a wash program and press start

2. Open the door and pull the lower basket forward or lift it out completely. Find and lift the float (the plastic dome/mushroom in the bottom of the washer) all the way up. Keep the float lifted and the dishwasher should pump out. Stop if/when you hear a gurgling noise as this means it's empty and pumping mostly air.

C: If you can hear the low humming noise but the pump doesn't start when you lift the float:
1. lift the float again for about 1-2 seconds then let it drop again for 1-2 seconds. Repeat this 10-20 times and see if the pump starts. The repeated stop/start signals to the pump motor can sometimes free a seized impeller.

If the pump does start, keep lifting and dropping the float switch (1-2 seconds each time) to see if the pump starts every time. If it does, you should be OK to use the washer, but further action is needed to stop the problem returning.

When you've done all this, post the results here and I'll advise you what to do to fix the problem or prevent it from returning.

Oct 08, 2010 | Bosch 24 in. SHU43 Built-in Dishwasher

1 Answer

Bosch SHU 8805 upper arm is getting no water.


replace the upper water arm conduit and wash arm hub as they leak under years of pressure and the o-rings leak water and then it can't hold pressure and supply the upper arm with full pressure water,also replace the center arm conduit if it has one as this will wear out too

Mar 23, 2010 | Bosch 23 in. SHU 8805 Built-in Dishwasher

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

Water does not get pumped out of dishwasher


I have had this problem a few times. For me all I had to do was unscrew the vent/overshow knob on the sink and clean out the vent. Because the vent is clogged, it does not allow the water to flow out. Clean out the debri and screw the vent cap back on- should work fine.

Aug 14, 2009 | Bosch 24 in. SHU43 Built-in Dishwasher

1 Answer

Bosch SHU 43C02 UC14 Dishwasher


if you have no leaks, leave the machine alone.if you have, thats a different story.you possibly have a flow switch. close your tap slightly so as to reduce water pressure. Less water will be used.{flow switch detects amount of water filled in a determined time}

Jun 03, 2008 | Bosch 24 in. SHU43 Built-in Dishwasher

1 Answer

Timer runs down to 1 min and just hums water covers the bottom


need more info on problem does it start washing then run down and hum or what

Dec 26, 2007 | Bosch 24 in. SHU53 Built-in Dishwasher

Not finding what you are looking for?
Bosch 24 in. SHU43 Built-in Dishwasher Logo

Related Topics:

97 people viewed this question

Ask a Question

Usually answered in minutes!

Top Bosch Dishwashers Experts

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

Gerry Harvey
Gerry Harvey

Level 3 Expert

1466 Answers

Les Dickinson
Les Dickinson

Level 3 Expert

18402 Answers

Are you a Bosch Dishwasher Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...