Question about Bosch 24 in. SHU30 Built-in Dishwasher

1 Answer

Water leak on fill cycle

The dishwasher model is actually SHU3012UC/U06, but that is probably irrelevant in this case. The water leak happens through the overflow hole (I am not sure if this is the right name) on the transparent plastic next to the blue assembly. The picture has already been posted on the board (thread http://www.fixya.com/support/t136177-no_water_in_dishwasher, picture http://www.fixya.com/Uploads/images/B1DBF8E.jpg). The dishwasher does not leak if I open the supply faucet, just a bit, and in that case it finishes without any other problem. It seams that something between the blue assembly and the tub cannot handle the higher flow, but did not find any obstacle. I disassembled the blue case and the hose and found nothing. I even removed the filter in the tub and tried it like that (did not put any dishes, of course), but it did not help. Any ideas will be greatly appreciated.

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  • Marko Vukovic Apr 25, 2007

    I removed and inspected the pipe (I called it "hose" in the post) and found it quite clean. But it is worth to try. What is a "dishwasher cleaner"?

  • Marko Vukovic May 01, 2007

    Since I did not know what to do, I called a repairman. And of course, it was so simple I am now banging my head against the wall for not remembering it myself: if you have a "device" which can not handle a certail flow, but there is nothing in it to block the flow, that the problem must be in the flow! Meaning, the main valve had to be replaced.

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  • 1,462 Answers

This type of fill mechanism is a pain in the butt and causes many problems. a likely cause is a blackage in the transparant pipe on the rhs of you picture about 1 inch diameter or a little more. recommend you use a dishwasher cleaner 3-4 times as year

Posted on Apr 24, 2007

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

Hi there,
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Posted on Jan 02, 2017

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Thanks for using FixYa. First of all please check the Water temperature by using a thermometer inside the dishwasher to measure the water temp. It should be as close to 125 degree F to 140 degree F as possible. Now try using the temperature boost feature if your dishwasher is equipped with this cycle feature and check if this will help your wash ability issues.

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hi...
If the cycle doesn't complete, check these....
Water-heating cycle Many dishwashers heat the wash and/or rinse water to a higher temperature, as the cycle calls for it. In these cycles, the dishwasher pauses after it has filled with water, waiting for the water to reach the pre-set temperature. What happens next, depends, as follows:

  • On some units, the pause is timed and the unit continues after the allotted time.


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if still it doesn't fix your problem then see whether any error codes are generated....
F1 Water heating fault, selected temperature not reached within 60 minutes · Incoming water temperature too cool
· Heating element burned out
· Thermostat defective F2 High water level · Plugged/Bad water pump
· Defective water inlet valve F3 Thermistor fault · Open thermistor
· Bad wiring to thermistor F4 Fault with water fill (only on machines with level-controlled fill)

Note: Lights blinking, pump running and controls dead indicates an over fill fault 1. Disconnect the power to the unit

2. Remove the lower access panels and check the tray under the dishwasher (you will probably find it is full of water)

3. Use a towel or a sponge to remove the water

4. There is a float that should stop the operation of the dishwasher and run the pump if water is in this tray. Check this pump to see if it is functional

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6. If there are no leaks from the dishwasher into the pan, check the drain hose under the sink

7. THE DRAIN HOSE MUST RUN UP TO THE TOP OF THE UNDERSIDE OF THE COUNTERTOP THEN DOWN TO THE DRAIN. (If the hose is not set up like this, water from the sink drain will flow into the dishwasher and overfill the tray

*Faults may vary by model. Use this as a general guide.
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