Question about Bosch 23 in. SHU303 Built-in Dishwasher
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Posted on Jan 02, 2017
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
Thanks for using FixYa. If you have nuisance water leaks around the base of your dishwasher, you may be using a detergent that is causing too much suds. Cut back on the amount of detergent you use, and see if that makes a difference.
Water that spills through the door vent is usually caused by improperly loading dishes. Leaks from the door itself may be caused by a faulty door gasket or door tightness adjustment. you should check the main tub seal, the door latch, the door gasket, the water-inlet valve, and the fill and drain hoses.
Also make sure the dishwasher is sitting level (you can adjust the front feet up or down, and many units have some type of levelers at the rear).
Water under the dishwasher may be originating from a leaky hose or loose hose connection. Remove the lower front panel, and check the hoses. The pump seal may be defective, too; replacing this is a job for an appliance repairperson.
An older dishwasher may corrode at the bottom, but this is fairly uncommon. If this is the case with your dishwasher, it's time for a new one.
Please do rate the solution if the issue is resolved or else revert for further assistance.
Posted on Nov 11, 2009
If your dishwasher leaks, check these:
Main tub seal
Door gasket or seal
Main tub seal Note… If the main motor of your dishwasher is mounted vertically, beneath the center bottom of the dishwasher, the following instructions probably apply to you. But if your motor is mounted horizontally, the pump isn't serviceable--you need to replace the entire pump and motor assembly.
The main tub seal is beneath the drain impeller. It prevents the water in the dishwasher from leaking out near the shaft of the motor. To get to the seal, which is inside the dishwasher, remove the:
Door gasket or seal Over time, door gaskets and seals harden and lose their ability to seal properly. You can't repair the seals. You need to replace them if they've begun to leak.
Water-inlet valve The water-inlet valve, itself, seldom leaks. But, the water-supply line from the house and the rubber tube leading from the valve to the inside of the dishwasher may leak. Tighten or repair/replace these as necessary.
The water-inlet valve could mechanically stick open. When that happens, the water continues to flow into the dishwasher, which then floods your kitchen. Turn off the water supply to the dishwasher, and replace the valve.
Hoses Behind the lower access panel on your dishwasher are several rubber or plastic hoses. If the leak appears at a connection, try a new clamp. If that doesn't work, replace the hose.
Posted on Mar 09, 2009
SOURCE: Bosch SKT 20 table top
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Posted on May 23, 2010
Welcome to FixYa.
There was indeed a recall involving the control replacement nearly two years ago now if I recall.
As for checking into the present issue ( it doesn`t sound like anything to do with the control based on your description ) it sounds like the pump impeller may have become stuck. Did the dishwasher sit idle or in storage unused for a period of time ?
I have a service bulletin I could send you via email regarding remedying that issue of stuck impeller if you contact me at email@example.com
I`d suggest you run the dishwasher through a diagnostic, but either procedure will require hooking it up.
To do this test/diagnostic on the SHU4322 series machine, it is as follows...
To start test program, press and hold both REGULAR WASH and RINSE & HOLD program buttons, then turn unit on by pressing ON/OFF button. Initially, control module version # will be displayed (e.g./ "20" = version 0 without jumper).
When wash program buttons are released, lights above them will flash. To end test program, press ON/OFF button.
To check each program indicator light, press its button. To check Cycle Countdown display, Refill Rinse Agent light and REGULAR WASH light, press REGULAR WASH button (press Delay Start button to test Cycle Countdown display alone).
Cycle Countdown display will show "88" when REGULAR WASH button is pressed and "8h" when Delay Start button is pressed.
To start testing, press both the REGULAR WASH and RINSE & HOLD buttons a second time.
When testing has ended, Cycle Countdown display will show a fault using codes below. If more than one fault occurs, code numbers will be added together, (e.g./ "6" = faults 2 + 4).
0 = No faults detected 2 = Heating fault 8 = NTC (temperature sensor) fault 1 = Aqua Sensor ("Sensotronic") fault 4 = Filling fault F = Filling fault (display occurs during wash, not test)
0 = No faults detected
1 = Aqua Sensor ("Sensotronic") fault
2 = Heating fault
4 = Filling fault
8 = NTC (temperature sensor) fault
F = Filling fault (display occurs during wash, not test)
To check for heater, high limit or flow switch problems, start testing until heating starts. Using a meter with a current coil, measure current going into dishwasher. If current is ~ 11 A, then heater, high limit and flow switch are OK. If current stays at ~ 1.5-2 A, then heater, high limit or flow switch are faulty.
If water level switch has failed (opened), display will show fault code "4" and unit will continually fill and drain where testing won't be completed. If flow switch has failed (opened), display will show "0", water won't heat (to 150?F) and water won't stop circulating. If NTC probe has failed (opened), display will show fault code "8" immediately and testing will end shortly after water has started circulating.
What needs to be done to solve the problem will depend on the results/findings of the dianostic, so let me know what you find and we can go from there.
Either way keep me in the loop and I`ll assist you the best I can. Thank you for choosing FixYa and good luck.
Posted on Oct 10, 2010
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If you are noticing that the dishes are not clean, then there are a few things to check for. Check the soap powder if it's kept in a dry environment. Also try replacing the powder with something like a gel or liquid. Next thing to check for is the water pressure and fill valve. Check if the water is filling in and the spray arms are throwing the water with enough pressure. Try and listen to the sound if you hear a proper spraying action sound.
If it seems as a low water pressure then check the fill valve. Now, check if dishwasher is draining the water or not. While the dishwasher is working check whether the dishwasher is draining and there is not much left out water after the cycle is complete. Try cleaning the spray arm with a soft brush. The water temperature plays a major role in cleaning of dishes. The temp should be between 125 and 150 F for dishwasher to clean the dishes. Hope this helps...
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