Question about Bosch 24 in. SHU53 Built-in Dishwasher

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I have a bosch shu312uc with a few issues 1. takes forever to count down (pretty sure its a control module) 2. dishes dont clean - smells terrible like bad water (could this be a result of the control module??) i checked to see if the trap was clogged, it didnt appear to be. any suggestions??

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  • cliffr31 May 03, 2010

    thanks for the feedback, i think its a food smell, i noticed yesterday after i attempted to run the dishwasher, when it was finished there was a build up of grime (food) along the bottom of the door that i had to remove with a kitchen knife. im not sure if it has a chopper, i will look into.
    i will grab some of the "affresh" you mentioned and give it a try anyway.

  • Rick Ead
    Rick Ead May 11, 2010

    is it a stagnant water smell of more like a food smell? if you think its a stagnant water smell at home depot they sell a product called affresh which comes for dishwashers and washermachines this stuff works so well it has removed the smell of a 1 year old burrito I found inside a unit awhile ago you may want to also check and see if your peticular model has a chopper sometimes food builds up as the chopper gets more worn down

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  • Bosch Master
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Hello Cliff, The first thing which comes to mind when I read your post is 1) your on the right trac, and 2) this is a very common occurance with B/S/H ( Bosch, Thermador, Gaggenau ) manufactured dishwashers, a failed solder on the control board, specifically the heater relay. ( I've come across & fixed literally hundred's doing B/S/H warranty ) Both issues you mention are likely related to this since it won't heat properly. It could also be a failed "ntc" the "heating element" itself or a stuck "flo-switch" in the heater assembly, but those aren't very common and therefore unlikely. With this in mind I'd first suggest calling in an authorized bosch servicer if that is an option for you and your budget however, If you cannot afford that option or feel capable of checking this on your own, there`s a way to visually inspect the control yourself ( and ultimately repair it, see "my opinion" below ) 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. This will be one of the pins from the heater relay, hence the unit sit`s and takes forever to finish and eventually advances to "off" and ommitting the dry cycle ( on models without a display ) because it can`t heat to advance or unless the 2 buttons for "cancel" are pressed. **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 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, 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. macmarkus :)

Posted on Apr 30, 2010

Testimonial: "thanks guys, i will check it and let you know how i make out. BTW,i fixed my washing mach, the trap was full of ****! thanks for the help on that one"

  • Mark MacDonald
    Mark MacDonald May 03, 2010

    Hi Cliff,

    No meed to look into whether it has a chopper or not, it doesn't. No Bosch does.

    Glad to be able to help. Good luck.

    Macmarkus :)

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