Question about Bosch Dishwashers
Hello, welcome to Fixya. If the water at your water supply is indeed hot it shouldn't be an issue, but try running the hot water at your sink tap to insure the cold water is out of the lines just before you turn on the dishwasher. All detergents require water temp. greater than the supply line will allow to work correctly and to desolve for a proper rinse as well. Hence the dishwasher must heat the water to work correctly. If it is what I suspect, the control, this won't make any difference but it's worth a try. If on the other hand the water is good and hot entering the machine, you likely have an issue with the control as I alluded to. "repairclinic.com" carries them as part # 1102296 at a retail price of $185.65US however,( double check with your actual model number AND serial number as there are a couple of version of control modules ) I have a suggestion as to identifying the culprit if you're open to it thus confirming or dismissing the cause...but you may want to call in a pro. Since the issue with your Bosch dishwasher potentially lye`s within`the electronic timer/control, specifically the heater relay solder joint. You'll need to access the control for a visual inspection ( a faulty flow switch, ntc or heater can also cause this, but not very probable ). To inspect and possibly repair your unit 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. **Further to this, if you or someone you know is proficient at soldering, a lot of times it can be remedied by simply repairing the solder...although Bosch recommend`s replacing the control and I don`t pretend to speak on there behalf nor do I profess to know better. Replacing the control will certainly remedy the problem. 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...safety first**. If you do not feel comfortable attempting this service, call a local pro as I alluded to earlier but with a word of caution, Insure it is one familiar with Bosch/Thermador/Gaggenau/Siemens to service your machine. Hope this answer`s your question's, let me know if I can assist you further. I will look for your reply. Please do reply either way, I've found after answering many of these questions I'm left wondering if the info was of any use to those asking. I don't know if perhaps a pro does get called in those cases and the "fixya" thread gets abandoned but I hope not. Thank`s for visiting "fixya" for your repair inquiries. Please take a moment and rate this solution to it's helpfulness to you and leave a testimony if you're satisfied. Good luck. macmarkus :)
Posted on Jul 28, 2010
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Posted on Jan 02, 2017
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