Question about Bosch SMS63E Dishwasher

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Bosch Dishwasher SMS4602eu is not heating up. I have tested the heating element for continuity and this seems to be fine. Any other suggestions would be greatly appreciated?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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

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Posted on Jan 02, 2017

  • 213 Answers

SOURCE: test bosch heating element

remove the kick plate at bottom of dishwasher, at the left leg there will be a wiring diagram. remove console and test element from there. diagram will show which wires to test

Posted on Nov 20, 2007

  • 49 Answers

SOURCE: Fills with water, sounds like it starts to pump water then stops, then start again

you have a wash pump problem. can be 1 of 3 things. most likely something is caught in the pump impelor if not the wash pump motor may be faulty or ceized or it could be the capacitor for the wash pump motor is faulty. you can try removing the wash pump yourself and check the impelor if it spins freely then you will have a motor problem.
hope this helped

Posted on Feb 19, 2008

  • 1462 Answers

SOURCE: Whirlpool Dishwasher ADG7540/1

an ntc is very reliable. have you checked continuity thro the heater? other common fault is a dry joint devoloped on the control card - take it out and check for dry joints

Posted on Oct 03, 2008

Macmarkus
  • 2605 Answers

SOURCE: Bosch dishwasher SHU3032UC/U12: Gets

Hello,

Welcome to FixYa.

Based on you description of the timer not advancing you`re on the right track when you said "Thought it might be the timer (control unit), but now am wondering if it could be the heating element or thermostat"


I suspect the thermostat isn't satisfied when heating the water, hence it get`s hung up trying to heat in the part`s of the cycle it`s called for.

It very well could be caused by a faulty flow switch, NTC or heater as well but not very likely.

The SHU 30** series Bosch dishwashers with a rotary dial timer have very few if any, issues with the actual timer or element but they do with the thermostat within the door panel.

If it ( the thermostat ) is not satisfied the water may heat but not be indicated via the thermostat, hence timer will not advance.

Here`s what you can try. If you have any hesitation or reluctance to service this yourself please call in an authorized B/S/H/ appliance technician.

**Turn off the breaker at the service panel before attempting any service suggested **

  1. You will require a #20 torx screwdriver to remove the door panel by taking out the screws around the panel, except the ones along the top ( watch the edges they are very sharp )

  2. Once the panel is removed you should see the thermostat over by the detergent dispenser clipped to the inner door, remove it and test it. You`ll need a ohm meter/multi-meter plus a lighter or match to heat it up to see if it open`s & closes.
Example...

5e74230.jpg
**NOTE** it can occur the thermostat can become loose and detach from the bracket which holds it in place, this too can manifest in the sysmptom of the timer not advancing.


Let me know how you make out and what you find.

Thank you for choosing FixYa and Good luck.

Regards,

Macmarkus :)

Posted on Sep 10, 2010

Testimonial: "Wow, loads of good inf to try to fix my dishwasher! I appreciate the very detailed answer to my question."

Macmarkus
  • 2605 Answers

SOURCE: Bosch dishwasher shx46b02uc has stopped

Hello,

Welcome to FixYa.

Based on your description
I'd say the issue actually with the control...unfortunately.
Bosch has had a history of this exact problem I'm about to lay out for you and it is rarely the element...maybe 1%. This is the first thing I'd be looking for if called out to service the unit with the symptoms you've described. **B/S/H/ also issued a recall on certain models between 1999 - 2006 depending on the model & serial number, you can check with yours but you'll need the serial number too. The issue was directly related to the heating circuit (specifically the heat relay on the control) Here`s the link if you want to see for yourself **

http://microsites.boschappliances.com/safetyrecall/dishwasher/


As I've alluded to the issue is likely within the electronic timer/control, specifically the heater relay solder joint. ( a faulty flow switch, ntc or heater can also cause this, but not very probable ).

My first suggestion would be contacting Bosch re: the recall or calling in an authorized bosch service tech. if that is an option for you and your budget however, If you feel capable of checking this on your own, there`s a way to visually inspect the control yourself...it really isn't very complicated.

It will require you to remove the control from the unit and then remove the control from it`s plastic housing and look for a burnt solder contact on the printed circuit board.


dabfa62.jpg


The culprit will 99% of the times be one of the pins from the heater relay,

9f1823d.jpg

**Flip this over and inspect the solder joints, it will be obvious when you see it.**

This ones new, but it's where to look...

9119d99.jpg


...hence the unit sit`s and takes longer & longer to finish because it can`t heat to advance or unless the 2 buttons for "cancel" are pressed...or takes a long time as I mentioned and eventually display's "1" on units with a display and usually very poor cleaning as a result.

You can also run the unit through a regular or econo cycle ...any cycle with the exception of rinse & hold, and with the door panel removed place an ammeter on the gray/black wire it should draw 11 amps during the wash cycle...after it fills and the flow switch indicates it has adequate water to engage the heater.

i.e.

f57273b.jpg
**My Opinion - if you or someone you know is proficient at soldering, a lot of times it can be remedied by simply repairing the solder...but it has to be done well...or it will not last, although Bosch recommend`s replacing the control and I don`t pretend to speak on there behalf nor do I profess to know better. This is just my experience (it work`s) and my opinion (why buy new if one can repair ?)**

**Please disconnect the power or turn off the breaker before attempting any service to the dishwasher.**


If you do not feel comfortable attempting this service, call a local pro, preferably one familiar with Bosch/Thermador/Gaggenau/Siemens, to service your machine.

Hope this answer`s your question, let me know if I can assist you further.
Thank`s for visiting "FixYa" for your repair inquiries. Please take a moment and rate this solution to it's helpfulness.

Good luck.

Regards,

Macmarkus :)

Posted on Nov 26, 2010

Testimonial: "I appreciate the fast response. Makes a lot of sense and will start exploring next steps. Nice work."

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The problem could be a failed heating element. If replacement of the control panel results in no change, the element could be the problem.

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My Bosch Dishwasher is not drying my dishes now. The model number is SHE44C05UC.


Hi there,

Unfortunately, it seems that the heating element has failed. The dishwasher uses steam to heat the tub to dry the dishes. I suspect your dishes are also being washed in cold water.

To check this, please run a regular full wash cycle. Allow the washer to fill with water and run for about 10 minutes, then open the door and feel the water temperature in the bottom of the washer. If the water is cold, it's more than likely the heating element has failed.

There are other possible faults which would cause the element not to heat, but these often prevent the dishwasher from completing the cycle. If the water is cold but the dishwasher still drains the water at the end - and completes the cycle - the heating element has probably failed.

Please try this simple test for water temperature and let me know if you need further assistance.

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My dishwasher does not do a hot wash. Why is this? If I need to replace the heating element, how do i gain access to heating element on my Bosch classixx dishwasher?


Hi, a common problem with these machines is the solder coming away from the heater relay. A simple repair if your lucky. Run a continuity test on the element with a multimeter before replacing it, as it is a massive job to change it. I just changed mine yesterday, the machine had to be totally stripped down. Although its not an impossible task, it does take some time. A kindly man on this site sent me a manual for Bosch dishwashers, which helped me enormously on stripping the machine down. I don't know if it is any good for your machine, but if you give me your email I will send it on to you. Mike :)

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Have BOSCH diswasher model SHE44C06UC/22 and it continues to cycle but never drys


Hi,
That could either be a problem with the control module or the heating element...my first guess would be the heating element... as it is looking to sense it working and does not...

A bad heating element causes many problems in dishwashers…

Dishwasher Problems The Heating Element not Working

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heatman101

Asker's Testimonial " explanation very clear. will give it a go and see how simple it was. thanks Ronnie " - ronnieshomes


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1 Answer

My Bosch dishwasher is filling and not heating, it drains fine starts filling but never completes a cycle. It is a SHU9956UC


Hi there,

Well you need to check the Heating element, Your dishwasher has an electrical heating element that helps to dry the dishes. If the element is burned out, the dishes won't dry properly, and you need to replace the element. Locate your dishwasher's heating element. Open the dishwasher door and look into the tub. It is the thin, circular tube at the base of your dishwasher. It may or may not be covered. If it is covered, remove the lower dishrack, and then remove the cover. 

Your heating element is going to have two metal terminals. One at each end. Each terminal reaches downwards, into the base of the dishwasher. Mentally mark the area where each terminal enters the base of the tub.

Now you need to gain access to the heating element's wiring. You can do this by first removing the lower kickplate panel of the dishwasher. There will be at least two screws (but maybe four) holding the kickplate panel in place. They are located either on the top or the bottom of the panel. If the screws are located on the top, you may need to open the dishwasher door in order to gain access to them. Close the door to remove the panel, though.

Now look into the lower access area that you have just uncovered. Pinpoint the area where the heating element terminals extend through the base of the dishwasher. They will each have a wire connected to it. Label each of the wires so that you will be able to properly reconnect them later. Now you can pull the wires off the terminals.

Each wire is connected to a terminal using a slip-on connector. Grasp the connector and pull on it firmly.
DO NOT pull on the wire itself. Pull only from the connector. You may decide you need to use a pair of needle nosed pliers to help you.

Use your multitester (aka multimeter) to test the heating element for continuity. Set the device to the ohms
setting x 1. Touch each meter probe to a terminal. You should receive a reading somewhere in between infinity and zero. Because of the variety of makes and models of dishwashers, it is quite difficult to say exactly what the reading should be for each and every possible model. However, if the test you conduct produces a reading of infinite resistance (meter's needle does not move), then that is indicative of a faulty heating element, and you should replace yours. Similarily, if the test you conduct produces a reading of zero resistance (meter's needle moves to the other extreme of the scale), then that is also indicative of a faulty heating element, and you should replace yours.
Please post comment if you need more help or information........

Good Luck!!

Thanks

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If the cycle doesn't complete, check these:---
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This will help. Thanks please keep updated.please do rate the solution positively .thank you for using fixya

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1 Answer

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If the cycle doesn't complete, check these:

Water-heating cycle
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  • On others, the cycle can't continue until the water reaches the higher temperature. If you have this type of dishwasher and the water isn't being heated (say, because of a problem with the heating element or thermostat), after the unit stops at the heating cycle, it never continues. When you repair the heating-system problem, the "cycle problem" is fixed too.

Timer Timers don't often fail. But if every other part of the dishwasher seems to be working properly and the timer knob seems to be stuck in one place--doing one function continuously--the timer may be at fault. Dishwasher timers can't be repaired. If yours is defective, replace it.


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Test bosch heating element


remove the kick plate at bottom of dishwasher, at the left leg there will be a wiring diagram. remove console and test element from there. diagram will show which wires to test

Nov 16, 2007 | Dishwashers

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