Tip & How-To about Dishwashers

Bosch DIshwasher Woes

Does you Bosch dishwasher seem to hang up at finishing the dish washing cycle?

Since originally writing this tip 2-3 years ago (2009 maybe?), I have provided the upgrade to countless others who have had the problem. Here it is, 2013, and I continue to upgrade several control son a weekly basis. Please follow the information below, and I can assure you that your dishwasher will be up and running again - better than new!

I happen to own one of these beauties, and SHU4306, and while all the Bosch dishwashers in this series of dishwashers do an excellent job of washing the dishes, they also have a design flaw that is very expensive to fix as it requires a new controller board.

But the problem surfaced with our dishwasher a few months ago, and I was put to the test by the resident dishwasher at out house, who is not happy when the dishwasher is broken.

There is a relay on the controller board that will fail, sooner or later. Bosch even has a service bulletin for their techs on a recommended procedure to repair a burned place on the circuit board underneath the relay. However, the repair is short term, and eventually the relay will fail again (I know, I tried it.). The repair is not sufficient, and there really is a more economical, and more technically correct, way to repair the board.

After the Bosch directed repair failed, I pulled off my dufus cap, put on my Engineering cap, and dug in. Here, I found the failed relay, and discovered the flaw in the board design. I ordered a more substantial replacement, and two days later, I was up and running.

I know that the failure occurs on the following Models-

SHI

4302 4306

6802 6805 6806

SHU

3032 3035 3036

3302 3305 3306 3322 3326 3336

4302 4306 4312 4316 4322 4326

5302 5304 5305 5306 5307 5312 5314 5315 5316 5317

6802 6805 6806

9902 9905 9906 9912 9915 9916 9922 9925 9926

SHV

4303 4803

There may be others, and, other manufacturers may have similar issues.

Bosch also provides a test sequence for their dishwashers that anyone can put the dishwasher through to help isolate what the problem might be. I am sure other dishwasher manufacturers do the same, and I will continue to dig for those sequences as time permits.

Contact me for additional help and support in determining the cause of your failure, and instruction on what parts to purchase or what to do next. (Don't throw the dishwasher out with the dishwater, so to speak!.).

You can reach me at - BoschRepair "at" tx.rr.com - (type it in as an email address, just like it sounds :-) ).

I can also make repairs to failed boards, where I make the needed repairs and test the board on a test bench made up of the same components that are found in the dishwasher. I do this with quick turn around, normally shipping the boards out the same day I receive them.
All repairs are made taking into consideration my years of experience in HVAC and appliance repairs, including working as an Engineer in design of such equipment, working with listing agencies such as U/L and CSA. I know what the concerns are, and will only make repairs that I deem are suitable and equally if not more safe than the original design.

I can easily save you the cost of a new board, as my repairs are 1/4 the cost of a new board.

Looking forward to hearing from you!

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1 Answer

Runs through cycle, but dishes and glasses do not dry, they are soaking wet.


10 Tips to Help the Dishwasher Run Better - Cleaning Tips ...

www.thekitchn.com/10-tips-to-make-yo...

Apartment Therapy's The KitchnFeb 24, 2014 - Well, we're here to help, with 10 tips for making your dishwasher run its best. ... loading up to help reduce particles stuck on dishes once the cycle is over. ...water to flash dry and not roll off your dishes, taking the ends of the dirty bits with it..... but can lead to damage, particularly of any glasses you put in the ...

[PDF]Dishwashers - Frequently Asked Questions ... - Bosch

www.bosch-home.com/Files/Bosch/In/in/Document/Bosch.pdf
this cycle the dishwasher dries the dishes. 3. ... dishes. During this time, you do notneed to be around the dishwasher as it ... Does it also dry the dishes after the wash?... You can put utensils that are made out of steel, ceramic, glass, plastic which is ...No, the dishwasher runs the whole washing programme automatically.

Why is My Dishwasher Not Drying the Dishes? ' Dr ...


Dec 03, 2015 | Dishwashers

1 Answer

the heating cycle has changed and there is now a shorter cooler activity


the fan is probably busted. may just need to replace the fan. but if its washing the dishes fine and drying them , then you probably shouldnt worry too much about it.

Nov 20, 2011 | Bosch 24 in. SGS43C12 Classixx...

1 Answer

dishes are not rinsing completely.why? th cycle seems to be finishing, but the dishes are not rrinsed properly. Do I ned a repairman?


First perform a vinegar cycle wash in the dishwasher. Pour a cup of vinegar into the bottom of the dishwasher. Keep the temperature at the highest setting possible and perform a wash cycle.Then start using a dishwasher most probably that would solve the problem. If this does not solve the problem then there must be some parts worn out or faulty creating the problem.

There are many probable causes of failure .

To clean the dishes the water temperature is essential.It the water is not hot then the dishes will not be cleaned properly.So check the water temperature.

Also check the filter in your dishwasher.Clean the filter if there is accumulation of debris in the filter

If you are in an hard water zone , then try reducing the amount of detergent used and then try cleaning the dishes.

Jan 04, 2011 | Bosch Dishwashers

3 Answers

mold grows on dishes in bosch dishwasher


Put a bowl filled with 2 cups of clorox on the lower rack and run a wash cycle (nothing else in the machine) this will kill the mold spores in the machine, and clear the smell.

Jul 29, 2009 | Bosch 24 in. SGS45E02 / SGS45E08 Exxcel...

1 Answer

Water left after finishing wash


I have a Bosch Dishwasher and the E-Nr is SGS4362EU/03. The machine is approximately 4 years old, in good condition and has been working very well. Suddenly, there is water remaining after it completes a 50 degrees C wash cycle. This is also evident with the pre wash cycle and the 65 degrees wash cycle.

I have checked and cleaned the filters. I have loosened the internal pump white cover (Torx T 20 screw) and checked for any physical blockage - none. I have also checked for any drainage hose kinks - none.

I have tried a series of empty washes and the machine drains the water during the wash cycles. The dishes are also have a dull colour and show show signs of not being properly rinsed during the wash cycle.

Please assist.

Reagrds,

Brian

Dec 27, 2008 | Bosch 24 in. SHY56A05 Stainless Steel...

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