Re: Bosch SHU4302UC/06 Sound Like It is Work But NO WATER
When you open the door is here water in the dishwasher? if there is no water, water is in the bottom pan under he dishwasher. it could be because if a small leak OR suds. suds is the most common reason to cause water to be in the bottom. if there is water then chances are that the impeller on the moter has striped off and you need to get a tech out. now if there is watter under the dishwasher then what you should do is shut the power off and take the kick plate off. to remove the water papertowel is the best way just soak up all the water and you should be able to use it again.
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Maybe wash temperature. The machine may be trying to heat the wash water to a preset temp and it is taking an extended time to get there. Maybe a faulty temperature probe or a bad element?
I know you will ask how this is possible when you have a final temp of 120 but that sound like a drying cycle temperature to me; not a wash temp.
I would leave the thermometer in through the cycle and you will probably find it will slowly get hotter in wash cycle and finally switch after a certain temp has been obtained.
possibilities are that of an inefficient heating element ie..scaled up if hard water area especially. whilst the cycle is being completed then the components are working... so other than the element check the drainage for blockages (slow draining adds time) & also water pressure as low pressure adds time to the filling..
There are no adjustments for cycle timing. What does affect timing is temperature of the water coming into the DW. The hotter your supply water, the shorter the time to cycle, BUT if your water is too hot, the cycle time may become too short to light the NSF 'Sanitize' indicator. But since the cycle is taking so long, this is an indication that the DW's water heater is not heating the water hot enough to advance the countdown timer in a timely manner. The control logic is waiting for the temp to come up to an appropriate level to ensure adequate washing, rinsing or drying times. Likely your display is showing '1' for a long time as a symptom of this problem, as well.
This link http://www.applianceaid.com/boschDW.html has procedures to run self-tests on various Bosch models. I suspect that you can confirm a 'heater fault' on your unit by running the self-test.
This problem invariably relates to a 'heater fault' which has usually been traced to an open solder joint on the control board located behind the switches/indicator lights on front door. If you have a Torx driver, soldering iron & bit of solder, you can effect a repair yourself in about an hour. Otherwise, a replacement control board is required. - If you'd like to attempt replacing the control board yourself, refer to this link for part & DIY information.http://www.appliancejournal.com/appliance-parts/bosch-appliance-parts/bosch-dishwasher-control-module-266746-37/
Else, place a service call to the tech of your choice.
You could try running the machine with the drain hose leading to a large bucket. If it works OK in this situation then the blockage will be most likely where the drain hose joins the house drainage system - often at a junction under the kitchen sink. With the drain hose disconnected you should be able to see the blockage and clear it with a suitable pointy tool.
Let me know if this sorts it. Thanks, D.
It sounds like a thermal stop. The water in the rinse wants to get up to a certain temp to satisfy the thermistor but doesn't reach it so it will stay there. If you have an amp probe you can put it on to see if the heater is coming on. This could be your problem.
Do you have high temp rinse or sanitize selected? This will pause the timer during the final rinse cycle to heat the water. The sensor might be bad. Try the quick cycle, I don't think this heats the water.
Common problem with these. Control panel (behind all the buttons on the door) has a thyristor in the middle of the PCB for switching the heater element ON/OFF.
After many screws and a bit of fiddling about, get access to back of PCB (print side) to find dry joints. Clean and re-make joints and all should be well.
Caution, this is a high voltage area. Disconnect from mains.
Please see photos.