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