Question about Bosch 24 in. SGS43C12 Classixx Free-Standing Dishwasher

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Bosch SGS43C12GB, water is filling & draining out without running the cylce

All the lights are fine, water comes in to the dishwasher and drains out straight away without running the cleaning program cycle.

Water is not reaching to the arms, tried to feed the water into the bottom arm after removing it seems clear and no blockage.

If somebody has faced the problem please help.
The machine is out of warranty and the call out charge and the fault repair seems more expensive then the machine itself.

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6 Suggested Answers

  • 236 Answers

SOURCE: Bottom Dishwasher arm not turning

have you seen whether water is pouring out of the bottom supply tube with the lower arm removed? not 100% sure on this model but some units have a half load switch but that should turn off the top one. there may be a blockage in the lower water supply tubeways.

Posted on Jun 16, 2007

  • 641 Answers

SOURCE: Access to Bosch dishwasher pump

To access the pump, first bail and sponge out any water in the machine's tub. Then tip the machine over on its front, using a heavy blanket or pad to protect the dishwasher's finish. Remove the back service panel. The pump is usually located along the bottom. Good luck!

Posted on Aug 28, 2007

  • 105 Answers

SOURCE: bosch classixx dishwasher not draining

try removing pump some models can be serviced fron inside well of machine glass can stop the pump from turning
clean out water and remove filters find a screw in base of well remove and remove pump housing check with torch to see if any obstuctions there if not see if the impellor moves around when turned and make shure that the pump is not worn out

Posted on Feb 24, 2008

  • 1462 Answers

SOURCE: neff dishwasher

if the arm is rotating freely when you give it a push by hand, then the problem is blockage in the jets in the arm - the arm only rotates with water coming out of angled jets at the end. take arm out, spray water in centre hole and whatever is blocking the jets should become visible. prize out with a paperclip or similiar

Posted on Aug 07, 2008

  • 254 Answers


If your dishwasher leaks, check these:

Main tub seal
Door gasket or seal
Water-inlet valve
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:

  • Lower rack

  • Spray arm

  • Spray arm support

  • Wash/drain impellers

Then pry the seal out of its housing and replace it.

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.
  1. A common leaking trouble maker
  2. Another common leaking trouble maker - especially for leaking out of the door area
  3. Can I use a rubber or plastic hose for the hot water on my built in dishwasher ??
  4. Some common pump assembly pictures...
  5. Dishwasher Basics
  6. Dishwasher child lock help new25.gif
  7. Dishwasher soap notice
  8. Draining and washing help
  9. Help for storing an appliance
  10. How to remove the access panels
  11. I just installed my food waste disposal, now my dishwasher will not drain, what could be wrong??
  12. I moved and lost the tap adaptor for my portable d/w, help!!
  13. Important disclaimer
  14. I would like to try to install my own dishwasher
  15. Loading your dishwasher help
  16. Motor and pump assembly screw and impellor help
  17. My dishes are not as clean as they used to be, what might be wrong?
  18. My dishwasher racks have rusted.
  19. My dishwasher will not fill with water
  20. My dishwasher will not start
  21. My soap dispenser will not open
  22. Sand like deposits inside the glasses and d/w
  23. Some common soap door dispensers breakdowns

Posted on Mar 09, 2009

  • 412 Answers

SOURCE: Lower spray arm does not spin on my bosch dishwasher

Sounds like you may have put it together wrong. I would just take the arm back off and make sure that it all fits together right. A little tip for you too. Dishwashers will clog up all the time with water deposits and food gunk. There are all those expensive cleaners out on the market but the best and cheapest way to clean them is with white vinegar. Simply pour it into the dishwasher when it is empty and run it on the pots and pans setting on hot. Always make sure to pre heat your water too by running the sink till it starts steaming. This will make it easier for your dishwasher to heat the water. If you don't, then when you turn on the dishwasher it starts to fill with cold water and has to heat it on its own. Run the vinegar though through it at least once a month or so and it will extend the life of the dishwasher. Hope this helps. Just try taking that arm back off though and putting it back together making sure everything is fitting properly. If you have any other questions feel free to ask me. Good luck.

Posted on Mar 20, 2009

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Bosch classixx dishwasher starts cycle then says " check water" and then seems to do same thing again and again, pumping water in and draining it again

Probably jug impellor part number (424099) from espares, buyspares or bosch direct.
No fix unfortunately, this problem manifests as unit starts to fill and motor does not switch on. Eventually the unit overfills and the pump and fill start to alternate and check water light comes on. If this is the fault then this part is the solution it runs in line with the inlet valve and side fill chamber, take the left side panel off (looking from the front) it is tucked away behind the hoses bottom left (white plastic disc with two wire connection tag). Check water light can also come on if the unit is not pumping, if this is the case, repost and I will try and talk you through clearing this fault.

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Certainly *sounds* like the float is stuck in the over filled position
or possible a bad float switch, if the float is stuck in the up or full position, the d/w will not fill with water and the drain motor will often run all the time

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The only way to eliminate a pump issue is to actually remove the pump and check it internally, it doesn't take much to block them and also the impellers can come loose, It sound like you are handy with tools so i suggest removing the drain pump and while it's off check the hoses that run to and from the pump for obstructions and make sure the impeller is not loose.

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If your dishwasher is brand new, then call Bosch service as they can repair it under warranty.

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taking off the fill pipe resets the anti-flood device

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My Bosch SHU43C had the same exact problem. I found the below solution on this site. Perhaps you already seen it.

My SHU43C is just over 3 years old. I had a similar problem recently. First, there were a few floods. Then, the Bosch only drained non-stop. Even when I used the Cancel Drain buttons the drain pump would run without stopping. When I tried to run one of the cleaning cycles, no water entered the machine. Corrective: I removed the base plate, and saw that the red plastic floatation device was in the up position. Using a flashlight and a wooden spoon, I lightly toggled the red float stem down. I pushed regular clean cycle and kept toggling with the red float stem until the rinse water started to enter the machine (turning the red stem seems to also actuate a step in the program). Now the dishwasher runs normally. Voila!

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