Bosch 24 in. SHX99A15UC Stainless Steel Dishwasher Logo

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Blakely Snyder Posted on Jun 23, 2012

I need a service manual for a bosch shx99a15uc/48

Bosch shx99a15uc/48 dishwasher is acting up to where I have to siphon water from a pan located in the lower front left of the chassis to get it to run. If I don't, it sounds like a food disposal running without water when I turn it on. This past week, the dishwasher has become incredibly loud when it runs and does not shut off when the cycle finishes. I need the repair manual to see if there is some way I can figure out what would cause the pan to fill with water and to see if I can run a diagnostic on the unit. Thank you Blake

5 Related Answers

johbru

  • 11 Answers
  • Posted on Oct 13, 2007

SOURCE: Bosch SHU4300 Water Fill Issue.

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.

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Anonymous

  • 331 Answers
  • Posted on Mar 23, 2009

SOURCE: bosch dishwasher motor keeps running no water

Hola Lewis!

This is such an easy repair, you'll be shocked and surprised! The reason this is happening is that the computer or timer has detected a "flood" condition and has permanently energized the drain pump to clear the "flood".

What you'll need to fix it...
1.) Shop-Vac (for vacuuming water) with a crevice tool (like one of these)
2.) T20 Torx bit with a driver. Torx sizing here. (You can get a set at Home Depot or Lowes)

All you gotta do now is get down on the floor and remove the kick panel. Then remove the screws holding the water valve and lift it up out of its' plastic holding. Now your shop-vac w/ crevice tool can be used. Stick the crevice tool in there (about 10") and vacuum up all the water that's been trapped in the basin. (you may need a flashlight to see what's going on back in there...) After the water is gone, your DW will work fine.

Here's how it works... About 10" behind the inlet valve is a "float" made of styrofoam. When water gets into the basin, the float rises and eventually trips a "flood condition" switch. This switch shuts the unit down and will only allow the drain pump to operate. So what you want to do is get the water out of the basin.

There may be a reason for the basin flooding, though. Suds (caused by too much (or the wrong) detergent), an actual water leak from the valve, etc... So after you get the water out of there and the unit is working again, you may want to monitor it (like, only run it when someone is home) for a while just to make sure that a real flood does not occur.

Hope this helps.
SG

Gabe Gilsrud

  • 98 Answers
  • Posted on Jul 19, 2009

SOURCE: Bosch built in dishwasher shu4302uc

There is a recall on the control board of many of these models. I have written a guide to help. It is here. Look for the phone number near the top.

Anonymous

  • 21 Answers
  • Posted on Jul 20, 2009

SOURCE: Bosch dishwasher model shx33a can't figure out how to just drain without running the whole cycle...HELP

HIT THE CANCEL DRAIN BUTTONS 2 BUTTONS TOGETHER THIS WILL RESET AND DRAIN ANY STANDING WATER

Anonymous

  • 205 Answers
  • Posted on Jul 21, 2009

SOURCE: Bosch dishwasher: won't fill with water

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.

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Bosch dishwasher. When running, can see water flow down overflow channel to pan at bottom of machine.

If you can see water flowing down the overflow channel to the pan at the bottom of your Bosch dishwasher while it is running, this indicates that there may be a problem with the dishwasher's float switch or water inlet valve.
The float switch is a small device located at the bottom of the dishwasher's tub that is designed to detect the water level inside the dishwasher. If the water level rises too high, the float switch will shut off the water inlet valve to prevent the dishwasher from overflowing. If the float switch is not functioning properly, it may allow water to continue to flow into the dishwasher, resulting in water flowing down the overflow channel to the pan at the bottom.
Another possible cause of this issue could be a faulty water inlet valve. The water inlet valve is responsible for regulating the flow of water into the dishwasher. If the valve is stuck open or is not functioning properly, it may allow water to continue to flow into the dishwasher, resulting in water flowing down the overflow channel to the pan at the bottom.
To resolve this issue, you may need to have a professional technician inspect and repair your Bosch dishwasher. They can test the float switch and water inlet valve to determine the cause of the problem and replace any faulty components as needed.
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From an internet posting ::

The purpose of the air gap is too prevent back-flow and siphoning, and newer dishwashers (past 20 + years) have back flow preventers built in and looping the drain hose (not a circle, but an upside down u to the top of the cabinet or behind/side of dishwasher) prevents siphoning. Aside form being ugly space wasters the cheap air gaps have a tendency to spit and cough water out.


Read more: What is the purpose of an 'air gap' for dishwashers? ' Answerbag http://www.answerbag.com/q_view/92208#ixzz1ACnxhxz3

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Bosch Dishwasher

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