Question about Bosch 24 in. SHU43 Built-in Dishwasher

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Bosch SHU4300 Water Fill Issue.

Recently came back from a weekend trip to discover dishwasher still running after 48 hours. Apparently there was some cloggage in the garbage disposal and that prevented the dishwasher from draining. Reset the Disposal and ran the dishwasher to discover that it was draining properly, but no longer filling with water. First step: Checked water lines and inlet valve for clear flow. Everything ok. With water valve removed from unit, applied 115VAC to test. Unit functioning. Reassembled valve and inlet. Still no water. Second step: Assumed then that an overheat may have caused a solder meltdown in the control unit which is common to these dishwashers. Discovered a hot spot on one of the solenoids in the control unit and a solder brake around a terminal. Re-soldierd terminal and reassembled unit. Still no water. Third step: Checking power to unit now....

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Yup, that was it. Discoverd that the tray had some water in the float area where there is a bit deeper reservour than the rest of the tray, which was just damp. Didn't notice the float was switching the unit off until I got my hands under there are pushed the float down. Then it all made sense. No repair bills for me thankfully!

Posted on Oct 14, 2007

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Similar problem for us turned out to be water accumulating in the tray which set off the float switch.  I vacuumed the water out and function returned to normal.  However, we are now facing a repairman's assertion the clay in our well clogged the water inlet systems necessitating $285 in repair parts and labor.

Posted on Oct 13, 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

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Posted on Jan 02, 2017

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1 Answer

How do we remove the horrible smell in our Bosch dishwasher?


First check out your model to see if it has a built in garbage disposal, if so, make sure it is not mucked up.
Run hot water down your sink drain while running the sinks garbage disposal. Pour baking soda down your sink garbage disposal followed by white vinegar. Let it sit and foam. Run hot water down sink disposer while running. When finished:
Run empty dishwasher with no soap, let dishwasher fill with hot water to wash and then pour 1 cup of white vinegar into the bottom and resume wash. Make sure you take it through the dry cycle. When finished, open dishwasher and let it air for a couple of hours, longer if you live in humid area. Hope these steps do the trick.

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Have a kitchenaid double drawer dishwasher. While running the bottom drawer the top drawer fills up with water. Had the filler valve on the garbage disposal changed. Issue still continues. Any suggestions


Mine does the same thing! (Same model) I've finally discovered that if I start the bottom drawer first and the top drawer just after that doesn't happen as much. Also, if I run the garbage disposal (and water obviously) while it's starting (I will try to do my hand washing while the dishwasher is getting going) that seems to keep this from happening as well. I've given up running just one drawer, which totally defeats the purpose of buying the 2 drawer dishwasher. But it does keep me from having to bail the bottom drawer :-( I'd like a better solution to this too!

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see this causes and proceed according. God bless you
Belt, Water Pump Although few dishwashers have a water pump belt, if the dishwasher won't drain there might be a worn or broken water pump belt. After removing the lower kick panel the motor can be seen in the front, the water pump belt is on the bottom of the motor.

Drain Pump If the dishwasher won't drain, the drain pump might be defective. Test the pump motor with an Ohm meter. Drain pumps are not repairable, if it's defective it will need to be replaced.

Drain Impeller The drain impeller is attached to the pump and pushes the water out of the dishwasher, through the drain tube and into the garbage disposer or drain line. If the dishwasher won't drain, the drain impeller might be broken or worn out. Replace both the impeller and seal at the same time.

Drain Solenoid Kit If the dishwasher won't drain, the drain solenoid kit might need to be replaced. The drain solenoid is an actuator that opens a flap to allow the water to drain.
Drain Valve The drain valve can get clogged with debris and should be cleaned out if the dishwasher won't drain. If it seems clear of debris but won't actuate, it will need to be replaced. The drain valve is not repairable Pump and Motor Assembly If the dishwasher won't drain, the pump and motor assembly might be defective. If the motor runs during the drain cycle, check for a blockage in the drain line. If the motor won't run during the drain cycle or if it just hums when it should be running, the pump and motor assembly might need to be replaced.

Clogged or Improperly Installed Garbage Disposer If the dishwasher won't drain and the garbage disposer was installed recently, the installer might have forgotten to knock out the drain plug from this disposer. All garbage disposers are sold with a solid plug in the drain tube for situations where a dishwasher isn't connected. However, if the dishwasher is connected, the plug will need to be removed. If the disposer wasn't replaced recently, remove the dishwasher drain hose from the disposer and clean out both the fitting on the disposer and the end of the drain hose. These are the most common places to find an obstruction if the dishwasher won't drain.

Clogged or Improperly Installed Garbage Disposer If the dishwasher won't drain and the garbage disposer was installed recently, the installer might have forgotten to knock out the drain plug from this disposer. All garbage disposers are sold with a solid plug in the drain tube for situations where a dishwasher isn't connected. However, if the dishwasher is connected, the plug will need to be removed. If the disposer wasn't replaced recently, remove the dishwasher drain hose from the disposer and clean out both the fitting on the disposer and the end of the drain hose. These are the most common places to find an obstruction if the dishwasher won't drain.

Check Valve If the dishwasher won't drain the check valve might be stuck closed. The check valve is a small plastic device which prevents water from returning to the dishwasher after it has drained. If the valve gets stuck closed, it will prevent the water from draining. The check valve is the device that the drain hose is attached to on the dishwasher.

Check Ball If the dishwasher won't drain the check ball might be stuck. The check ball is a small plastic ball in the check valve which prevents water from returning to the dishwasher after it has drained. If the ball gets stuck, it will prevent the water from draining also. The check valve is the device that the drain hose is attached to on the dishwasher.


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Oct 16, 2012 | Whirlpool Dishwashers

1 Answer

Bosch Dishwasher drain mechanism starts itself a few hours after a completed cycle and won't stop. I reset the dishwasher, but it remains unusable for a few days. If I turn on the dishwasher, th


this could mean there is water leak and it collects at the base of the dishwasher leading to moisture detection circuit tripping. when you leave it for a few days the water dries up and trip is removed. check door seals for leak most likely at the base of the door. turn power off when working on dishwasher.

Jul 18, 2012 | Bosch Dishwashers

1 Answer

Our Bosch dishwasher has water filling back in bottom of dishwasher after cycle is complete. You can empty dishwasher and no water will be in the bottom, but several hours later the water has filled the...


Check the drain line underneath the sink.
It should be suspended just below the counter top.
If it is too low,water from the sink will back fill into the dishwasher.
If the drain is OK,then the dishwasher water valve is defective.

Mar 26, 2011 | Bosch SHU3306UC Built-in Dishwasher

1 Answer

My Bosch dishwasher is taking hours (at least 3 - maybe more) to complete a cycle. There is gummy, yucky stuff building up inside - sorta pinkish brownish. Could the water not be hot enough? A couple of...


if your on demand heater is one of the small ones that mounts under the sink, it will not flow enough water to fill your dishwasher. the dishwasher is waiting for the water level to fill before it starts washing. your bosch will heat its own water. hook it up to a cold line ahead of the water heater so that the fill valve is fed with full pressure. the residue sounds like detergent build up. when you get the water issue resolved, run a few cycles with no dishes and no detergent, on the highest temp setting. add a cup or two of white vinegar or dishwasher cleaner ( order online or get from an appliance repair store) through it. Dont forget your dishwasher has a filter in the bottom under the spray arm that needs to be cleaned periodically. if you dont clean it once a month it will get all kinds of nasty stuff built up in there.

Nov 20, 2010 | Bosch SHX46A07UC Built-in Dishwasher

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My whirlpool motor does not sound like it kicks on when started. The dishes are not getting cleaned...and water remains in the bottom. When I hit drain, it will drain. I also recently noticed that I am...


Yes it's most likely related. Your dishwasher dumps all the debris it washes off the dishes into the garbage disposal. I'm not a dishwasher distributor so I can't tell by the model number just what dishwasher you have.
Most people dump little thing in the disposal through out the day with out thinking about it or running the disposal, try running the disposal while your running the water to warm it up.
If your dishwasher has a built in garbage disposal, then from what you've described I would say something either a small metal utensil or a piece of glass has gotten down into the dishwasher's disposal and damaged the blade.
If your dishwasher doesn't have a disposal then it's most likely gotten into the pump impellor and broken off some off the teeth.
Another thing I've run into is that the lines inside the dishwasher get holes worn into them, either from the hot water going through them or the spray, I don't know which is the cause. Pull the trays out turn the top one over and check the line for damage. While the trays are out check the other lines and the pump for visible signs of damage.

Jun 18, 2010 | Whirlpool GU2400XTP Built-in Dishwasher

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I have a Bosch dishwasher model SHU66. Clean water slowly pools in the base when the dishwasher is not in use. We need to drain the DW every 12 hours or water will overflow onto the floor. Is this an isue...


IT SOUND LIKE IT IS A WATER VALVE ISSUE.DRAIN AND CANCELTHE MACHINE FIRST THEN TRY TO SHUT OFF THE WATER GOING INTO THE MACHINE PROBABLY UNDER THE SINK. SEE IF THE WATER IS STILL COMING IN TO UNIT. IT SHOULD NOT BE. THEN TURN ON WATER IF THE WATER STARTS TO FILL MACHINE THEN CHANGE THE WATER VALVE.

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No water in the dishwasher Bosch SHX43M02-48. We turned of the water and forgot to turn it back on and ran the dishwasher. Now the it will not let water in?


Hi, By the information you've supplied, I'd guess you burnt out the coil in the water/fill valve by running it without a water supply to the valve. Are there any other unusual symptom's or error codes ? i.e. drain pump running none stop ? Can you put water into the tub manually and run a rinse cycle without issue ? In any event the valve is pretty inexpensive, usually about $30 or so. The part # 425458 works on all bosch, thermador, gaggenau, and siemens dishwasher built since the early to mid 90's up to present day. Hope this was helpful to you. Thanks for visiting "fixya" today. Good luck. macmarkus :)

Mar 05, 2010 | Bosch Dishwashers

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