Question about Bosch SHU5316UC Dishwasher
Cool water is the problem. Trying to find the solution, since my regular hot water is 130 degrees or more. Inside the dishwasher the water is only about 90 degrees, and gets cooler with time. I expect that it is either the "brain" or the heater. Is there any history on which go bad? Also, where are the parts inside the unit, and are they easy to replace?
Thanks for any and all help!
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Posted on Jan 02, 2017
SOURCE: water not going in
This is a little late for the OP. But, I had the same problem over Thanksgiving of 2008. I searched online and saw that other people had the same problem, but there were no solutions posted. So, I paid $130 for a service tech to come fix the problem - maybe this will save you some time and money.
The solution was simple...pour boiling water (I boiled about a half gallon of water in a cooking pot) straight into the pump where the water sprays out of. You don't have to pull your dishwasher out and no tools are needed. Just open the door, pull out the lower roller tray, remove the bottom spray fin (just pull straight up), and pour the boiling water straight into the hole where the bottom spray fin was attached to. Next, put everything back in place, push the Power switch on, select a wash mode, and close the door. The dishwasher should start spraying water inside as usual.
The service tech told me that there are only two pumps in this dishwasher...one to pump the water in (the one that had the problem) and one to pump the water out. When you don't use the dishwasher frequently, the seal in the wash pump seizes up (sticks together). You can hear the motor humming, but the pump isn't able to send the water up into the spray fins. By pouring boiling water into the pump, it helps to break that stickiness and allows the pump to start sending water up into the spray fins. The solution is to run your dishwasher at least once a week. Even if you don't have much to wash, run a rinse cycle to let all the parts move and stay loose.
One other tip the tech told me is to pour a cup of white vinegar into the pump when you go away on vacation and the dishwasher won't be used for a week or more. This should keep the seals from sticking together. I haven't tried this yet.
Hope this helps.
Posted on Dec 28, 2008
The flood switch is tripped. This is located under the unit. Unplug or flip the breaker to the dishwasher, take off the black kick plate under the door, 2 screws, and you will see the white plastic "pan". The flood switch is located where you can't really see it but it is on the left hand side wall and is made of styrofoam. The best thing to do is to put some rags in the pan, this is not easy because there is little room to put them, and soak-up the water that has filled the pan. Eventually you will get enough water out that the float will deactivate the switch. What you hear "running" when you turn it on is actually the drain pump, it get activated when the flood switch is tripped.
Posted on Jul 21, 2009
i solved the problem by going to bosch uk website and one of the numbers came up when i went to download instruction manual
so that solved problem. thanks for your help.
Posted on Sep 18, 2009
2H is not exactly an "error code", but it does indicate a problem. It means that the machine exceded its wash time by more than 2 hours. This is usualy caused by a failure of the heater, most often caused by a failure of the controll. Remove the control from the door, remove the plastic housing from the control, and check for a bad solder joint on the heater relay.
If you find a bad solder joint, REPLACE the controll.
Or call a qualified service person.
NOTE: The SHU53A dish washer with serial numbers from FD8205 to FD8507 are included in a factory recall. If your dishwasher is one of these contact BSH @ 1-800-586-9226 24/7.
Posted on Mar 29, 2010
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