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I have a Bosch SHU53513UC/U12 dishwasher. My initial problem is that the washer smells bad after a cycle and I've noticed some water sitting in the bottom of the unit. After running a diagnostic test, it results in a "2" heating fault. I followed your advice and used a current coil to and attached it to the GYBK-a1-3 hot wire on the control board. After running the test again, it only gets as high as 1.15A and manual says it should reach 11A. What should I do next?

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  • Dishwashers Master
  • 2,605 Answers

Hello,

Welcome to FixYa.

Based on your description
I'd say the issue actually with the control...unfortunately. The "2" being displayed in the test is actually an error code associated with a heating fault ( probably the relay solder on the control )


**B/S/H/ also issued a recall on certain models between 1999 - 2006 depending on the model & serial number, you can check with yours since some of the SHU53 series was included for, though it still suffers from the same problem...you'll need the serial number too. 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 ).

If you feel capable of checking this on your own, ( sounds like you've got a handle on it ) 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.


I have a Bosch SHU53513UC/U12 - 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...




...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.

**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. To add to this, if you want to post your email address I can send you a Bosch service manual.

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 Jan 02, 2011

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Posted on Jan 02, 2017

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