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Here is an excerpt from "Bosch Dishwasher Troublesoooting".
Running a Test Cycle
Bosch dishwashers have a test cycle which can be run as a troubleshooting
measure. The method to run this test cycle is similar across the Bosch
dishwasher range so if your dishwasher features seems different from those
described below then try experimenting, as the process is fairly straight
forward and will be very similar. Bosch dishwasher model numbers are usually
found around the top or lip of the door. One of the most common differences
between dishwasher models is simply the names of the buttons. For example in
the first example below, POWER SCRUB PLUS and REGULAR WASH may be called WASH
and ECO depending on your dishwasher model and the country you are in. The
other key difference is whether your dishwasher has a display panel (which can
display error codes) or not (in which case a program light will illuminate to
tell you the fault.
To run the test cycle hold down the POWER SCRUB PLUS and REGULAR WASH
buttons. Whilst held down press the ON/OFF button. The lights above them should
flash. Now you can check the status of each dishwasher program by pressing its
button. Now you can run the full test cycle = Press the POWER SCRUB PLUS and
REGULAR WASH buttons again. The dishwasher will start up and when the cycle has
ended one, if you have no display panel on your dishwasher model the indicator
lights will illuminate if a malfunction was detected as follows -
CLEAN - A temperature sensor fault. If this is the case then the test cycle
will be very short as the dishwasher will terminate the test once it's been
RINSE/DRY - A water sensor/filling fault. If this is the problem then the
test cycle will not complete as the dishwasher cannot detect the right level of
water, the dishwasher will just keep filling and draining again.
WASH - A heating fault. Check your heating element.
If you do have a display panel on your Bosch dishwasher then after the cycle
is complete an error code will be shown if a fault has been detected. The error
codes are as follows -
0 - No errors have been detected.
1 - A water sensor/filling fault.
2 - A heating fault.
4 - A water filling fault. This can also appear as F on the display during a
8 - A temperature sensor fault.
When troubleshooting your Bosch dishwasher, running
the above test cycle is a good start in diagnosing the problem and should give
you an idea of where the problem lies with your Bosch dishwasher and what fixes
and repair are in order. Our general troubleshooting page will give you some
ideas on other things to check on your dishwasher. Good luck!
Hello, How long has your dishwasher been do this? Have you washed dish's in
it? Also, these German made dishwasher run on less than 2 1/2 gallons of
water. These German manufactured dishwasher machines run really quite. Because
of the German water conservancies laws. They limit the amount of water
dishwasher and washing machine can use. Also, there is no storage hot water
system in there homes, it on demand hot water. You can't hear the motor running
and about the only thing one can hear is maybe the water washing the dishes.
Now, the water at the bottom of the dishwasher, if the drain isn't connected
up under is the sink drain and trap area or the garbage disposable in the sink.
but some place lower on the drain pipe. You will not have a spiffing effect on
the the bottom of the dishwasher, it the same with washing machines. One the
discharge pump starts sucking air, it will not drain the dishwasher. The siffen
effect works if the water is below the outlet for the drain. Example: Home owner
have the new washing running and continue fill with water. Why, because the
drain pipe end is below the the bottom of the washing machine tub. It fill up
with water and siffen action continues emptying the tube will it still filling.
One heck of a water bill.
on an empty cycle fill the machine and use some C.L.R or other lime and scale remover in the machine and let it wash through the cycle.
try putting more water in the tub once the fill cylcle has completed and the wash cycle starts.Make sure the incoming water temp is at least 120 degrees.
if there is no change in the washing of the dishes
you may need to replace the main wash pump. if there is a change then you need to replace the fill valve or increase the water pressure to allow more water in the unit during the fill cycle
I would check tosee if your water meaning hot water temp is hook up correctly. i have seen cold water going to machine and causing the machine to do funny things. 1 the unit drains.2. it fills.3.it washes if the water is cold there is your problem .make sure b4 you start machine the water going in is hot. let me know how you made out maybe we can further check. p.s im a old bosch tech:)
Thanks for using
FixYa. First of all please check the Water temperature by using a thermometer
inside the dishwasher to measure the water temp. It should be as close to 125
degree F to 140 degree F as possible. Now try using the temperature boost feature
if your dishwasher is equipped with this cycle feature and check if this will
help your wash ability issues.
Now check the
Powder soap by making sure that you store your soap in a dry environment and it
is not stale and clumping together. Possibly try a different detergent like a
liquid or gel. Also, make sure the dishes are loaded properly, or dishwasher is
To check the
proper filling dishwasher will fill with water up to and around the heating
element. If water is more below the heating element, you may have low water
pressure or a problem with the fill valve. Try & listen if it sounds like
it is spraying the water around with enough pressure.
For low water
pressure, try to clean the screen at the entrance of the fill valve, sometimes
the fill valve can fail and not allow the proper water into the dishwasher and
may need to be replaced. And, check the spray arm and pump cover for
splits or leaks. Also make sure that the water is draining and is
not accumulated in the dishwasher, if it is in dishwasher then check
for clogged drain hoses and drain pump.
Low water fills
are a very common trouble maker with today's dishwasher.
Please do rate this solution and
revert for further assistance.
If you are saying that in the wash cycle it fills and then stops it could be that your water temp is too low. Some models will stop to heat the water in the main wash before going into the agitate mode.
There are a couple reasons water may be leaking out the door of a dishwasher. 1. The water is most likely coming out the bottom of the door where there is no rubber seal. 2.
The rubber seal is around the door jam on top and both sides and not on
the bottom. This means if the dishwasher has to much detergent in it
the soap suds push only the water higher than the front edge of the
wash basin and out the bottom of the door where there is no seal! 3.
Fill only the soap cup that can close for the secondary wash. The open
cup is a pre-wash and mostly not needed unless the food is baked
on.This just wastes money to fill both of them every time. 4. And if you are using liquid detergent you only need half the amount from the powdered soap! try less soap. Remember to much soap too can cause the water overflow. 5. And the last would be that the drain is clogged and caused a back up large or small and then the overflow! is there water in the bottom when the wash is done? Soap is usually the culprit, not that there can't be a leak in an old drain or water supply hose! Go with the soap idea first!
Let me know how you are! How old is the washer ?
Please remember to leave a rating before you go! Thank You ,Huuum