Question about Bosch 24 in. SHU43 Built-in Dishwasher

1 Answer



Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that gotĀ 5 achievements.


    An expert who has written 50 answers of more than 400 characters.


    An expert whose answer gotĀ voted for 20 times.

  • Expert
  • 130 Answers

Bosch dishwashers are designed to heat the water to temp. However it has a 3 hr default if it doesn't reach temp. Start the cycle and see if after 1 hour if the water is hot or cold. If hot, then it is heating the water and the water coming in is just too cold. You may try running the water at the sink to get it hot there first before starting the dw. If the water is cold, then your unit isn't heating the water. At this point I pull the outer door panel, find the largest wires on the control unit and put my meter leads on them then start the machine. You will see 120 volts on your meter. Start the machine in light washes and with in 10 to 15 minutes you should see 0 voltage. Than means the relay has closed in the control and the hot line of the 120 volts is being sent to the heater. If this never happens, then you have a bad control. Bosch dishwashers have a 5 yr part warranty on the electronic control. Now If you get the 0 volts, I will put my amp meter on one of the same wires and check for 9 to 11amps. If that isn't there, then you have a bad heater assy. Hope this helps

Posted on Jan 06, 2008

Add Your Answer

0 characters

Uploading: 0%


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


3 Points

Related Questions:

1 Answer

Bosch dishwasher cleans unevenly

Check filters and clean. Remove spray arms and make sure no food scraps are blocking any water holes.
Regards Sam

Sep 16, 2013 | Bosch Dishwashers

1 Answer

Bosch Dishwasher no longer cleans thoroughly

Hi pollyconti,

Please look at my tip below, it will give you good suggestions to try out on your Dishwasher.


Kind Regards :-)

* If you found this solution helpful, please rate it.

Jul 06, 2011 | Dishwashers

1 Answer

My washer no longer cleans the dishes. the functions all work but it appears that the pump pressure is too low to get stuff off the the dishes.


When my wife started complaining about her dishwasher not getting the top rack clean this is what I found and I wrote a tip about it...

Dishwasher Spray Arms not Spinning


Sep 06, 2010 | Bosch SHU9925UC Built-in Dishwasher

1 Answer

My Bosch Dishwasher cycle runs for 2 plus hours!

If this unit is running for a long time it is because it is still try to heat the water temp up it is eather the control board or the heater.

Mar 28, 2009 | Bosch Dishwashers

1 Answer

Bosch dishwasher cleans but will not drain.

Remove the drain hose where it attaches to the disposal. This area often clogs and will prevent any d/w from draining.

Feb 13, 2009 | Bosch 24 in. SHU43 Built-in Dishwasher

2 Answers

Bosch dishwasher will not drain - causing moldy odor

Hello Mimhoff it depends on how much water is down there. The sump area always has a little water in it to prevent the circulation pump seals from sticking. Usually around 1 to 2 inches. If there is more than that, check the slots at the bottom of the sump on the left side for being clogged and check the end of the drain hose to make sure it is clear. If you are getting a moldy/odor from the dishwasher, try running Dishwasher Magic or Tang thru the dishwasher. This will remove any build up of food or detergent from the dishwasher. If you are running the dishwasher every few days and just scraping your dishes, then either leave the door ajar or run the rinse & hold cycle to help keep the odor down. Bosch doesn't reccommend running bleach thru the dishwasher as this can cause damage to the rubber seals. However 2 tablespoons of bleach once a year won't hurt.

Feb 01, 2008 | Bosch 24 in. SHU66C02 / SHU66C06 Built-in...

1 Answer

Bosch dishwasher SHU66C02UC

You have water in the base of the machine. There is a flood float in the bottom so if any water gets into the base, it will shut off the water and run the drain pump as long as the power button is on. So shut off the breaker, remove the toe kick, and remove any water that is down there. Now start the machine and see if water is leaking into the base. If there isn't any water, an the dw is still running the drain pump, then with a wooden spoon raise the red plastice stick on the left side of the dishwasher up and down. It is possible that the overfil float is stuck. If this makes the dw start filling, then run cooking oil thru the dishwasher on the scrub cycle to remove excessive detergent. If you are in hard water, then the water deposits have caused this. Run citric acid ( Tang orange drink, Dishwasher Magic, or such) thru the dishwasher to remove this.

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

1 Answer

Bosch dishwasher she44c02uc runtimes are getting longer

hi there this is a software problem on the pcb and the only way to fix it is to replace the pcb. cost about £80

Dec 13, 2007 | Bosch 24 in. SHU43 Built-in Dishwasher

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

658 people viewed this question

Ask a Question

Usually answered in minutes!

Top Bosch Dishwashers Experts

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

Gerry Harvey
Gerry Harvey

Level 3 Expert

1456 Answers

prem mathew

Level 3 Expert

662 Answers

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

Answer questions

Manuals & User Guides