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I have a Bosch dishwasher model SHU9925UC/UC12 that doesn"t stop in the drain mode. There is no water is sump to activate float switch.

The water level control appears to be operating correctly. The water heats nicely, the machine simply won't stop draining. I have looked at the control board in the area of the heater relay. The board is slightly discolored in the area (as if it had got warm) but the solder connections are all sound. Is the control board bad or is it some other issue?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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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silly girl
  • 513 Answers

SOURCE: Bosch Dishwaher shy56a

Certainly sounds like the float is stuck in the over filled position or possible a bad float switch. Could also be a bad water fill valve - if you can blow air through it when removed then you need to replace it. You can follow this link to troubleshoot your washer, but note that its not exactly for your model - http://www.thermador.com/replacementparts/main/pdfs/SHU-complete-troubleshooting-guide.pdf Good luck!

Posted on Mar 26, 2006

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  • 1 Answer

SOURCE: cleaning the drain of a bosch dishwasher

had the same problem if you remove t20 screw on the left side of the bottom bowl & remove plastic cover this is the drain pump & can block with food or glass particles clean it out & check it revolves & should be ok

Posted on Jul 01, 2008

  • 1 Answer

SOURCE: Bosch SHU9925UC Dishwasher Stuck in Initial Drain Cycle

OK Bosch Dw fans.........here is the fix if your SHX dishwasher is stuck on the drain cycle. This may save you a couple hundred bucks.......so listen up. There is a tendency for the very small float switch to STICK in the ON position, which will cause the drain motor to continuously run......and DISallow any other function to work. DISCONNECT POWER. Did I mention to disconnect power? Take off the front base cover....2 torx screws. Remove the other 2 torx screws in the metal clips that fasten the top of the DW to the underside of your countertop. NOW...carefull slide your DW out. You may have to disconnect your water and elec supply if you do not have enough slack to pull it out. Once the DW is out of the cabinet, remove the shiny metal cover on the LEFT side by removing a single torx screw. You will now see a small plastic assembly with a red plastic piece that moves up and down as it rides on a small red styrofoam float. This up and down movement engages a small white plastic switch visible with 3 wires coming out of it. You can carefully UNSNAP this switch out of its mount, and pull the 3 wire plug off of it. THere is a small square blue plastic tab that is supposed to easily slide in and out of the switch. If it is stuck IN, you can sometimes tap the switch and the blue tab will pop out, which is what it is supposed to do without tapping it. You can carefully with a knife blade separate the case on this switch and note the way it comes apart. Clean out any micro debris out of the small channels that the blue tab ride up and down in. Then set it in the channel while holding up the small switch tab that rides on it and see if it slides up and down without sticking! I like to take a piece of wax paper and rub in on the channel and blue tap to provide some lube for the switch to slide easily on. Now, put the switch back on and manually move the red plastic assembly up and down while you are watching the blue tab. The tab should ride up and down with the red assy. If not, buy a new switch. Google the # on the switch and order one. If the tab slides up and down, put things together in reverse order and give it a try. Hope it works for you. This should take you an hour give or take. Take the $200 you just saved and have a night out on me. ........so even though these German Appliances have a good name because of past reliability, the american tendency to value engineer them with plastic parts to reduce costs and increase profit.........just cost you an hour of your time. Will we ever learn.? ......if it ain't broke, value engineer it until it only lasts through the warranty period so you can then collect service and parts blood money from your fellow american.

Posted on Jan 11, 2009

RepairClinic
  • 32 Answers

SOURCE: Bosch Dishwasher pump keeps emptying

Disconnect the power to the unit. Remove the lower access panels and check the tray under the dishwasher. You will probably find it is full of water. Use a towel or a sponge to remove the water. There is a float that will stop the operation of the unit and run the pump if water is in this tray. Test the unit. If there are no leaks, check the drain hose under the sink. THE DRAIN HOSE MUST RUN UP TO ABOVE THE TOP OF THE MACHINE THEN TO THE DRAIN. If the hose is not set up like this, water from the sink drain will flow into the dishwasher and overflow into the tray under it.

If there is no water in the pan under the dishwasher there may be a problem with the pressure switch at the side of the pump housing but the only way to know for sure is to do some electrical testing with a volt/ohm meter and the wiring diagram located within the appliance.

Go here for Bosch Dishwasher Parts: http://www.repairclinic.com/Bosch-Dishwasher-Parts



www.RepairClinic.com

Posted on Feb 11, 2009

mark_37388
  • 100 Answers

SOURCE: bosch dishwasher = machine on but no water, so the

If you can see the water use a shop vac if not you will have to pull the unit out and remove the left side panel after removeing the water you will need to find the leak that caused the bottom to fill with water

Posted on Mar 29, 2009

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1 Answer

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E15 on the Bosch units indicated the base switch is activated. There is a safety switch which will activate the drain pump to avoid the base overflowing. Basically you either have a leak or possibly rodents living in the base of your dishwasher.

Easy way to check is first make sure no water is inside the washing area or sump (where the filter is). You will have a dribble there which the drain pump won't pump out but make sure it is mostly empty. The dishwasher always drains at the beginning of a cycle if you need to manually activate this, just turn you tap off so it doesn't try to fill. unplug your dishwasher then pull the machine out and place some old towels along the base and tip if forward. If water run out from the base then you got a leak.

If you are a bit handy then you can take either the front kick plate and cover off or a side panel to look in the base. The float switch is a polystyrene disc which raises and hits a micro switch when the base fills up.

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i hope this was helpful

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1 Answer

Bosch Dishwasher pump keeps emptying


Disconnect the power to the unit. Remove the lower access panels and check the tray under the dishwasher. You will probably find it is full of water. Use a towel or a sponge to remove the water. There is a float that will stop the operation of the unit and run the pump if water is in this tray. Test the unit. If there are no leaks, check the drain hose under the sink. THE DRAIN HOSE MUST RUN UP TO ABOVE THE TOP OF THE MACHINE THEN TO THE DRAIN. If the hose is not set up like this, water from the sink drain will flow into the dishwasher and overflow into the tray under it.

If there is no water in the pan under the dishwasher there may be a problem with the pressure switch at the side of the pump housing but the only way to know for sure is to do some electrical testing with a volt/ohm meter and the wiring diagram located within the appliance.

Go here for Bosch Dishwasher Parts: http://www.repairclinic.com/Bosch-Dishwasher-Parts



www.RepairClinic.com

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