Hello - I have a similar problem. The display is blank, it has power and is lighted but no characters.Tried cycling the power and pushing buttons but I get no response.
I discovered the problem after a power failure (surge). At first I had no power. I replaced a fuse and then the "start" button will light but the other lights on the panel will not light. The display is black also.
Were you able to fix your machine?
Do you know how to reset the machine or to retrieve any error code displays?
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Re: Bosch washer WFK2401UC
It appears your timer/controller board has failed in this instance.
For replacement parts - head on over to PartSelect.com or RepairClinic.com and enter in your full model number for a full parts listing. I recommend both sites because ...
FixYa has no affiliation with either site - I have been using and recommending them for years - trouble free.
PartSelect has a great schematic database for locating the part on your unit and great "testimonials" for each part that often times includes HOW-TO information. RepairClinic has pictures of each part they sell and also a great how-to and troubleshooting for basic repairs.
If your unit has never been serviced - there should still be an original service manual enclosed in plastic taped to the inside of the shell. In the service manual are Error codes, maintenance procedures, and troubleshooting steps you can follow.
Anything too complicated or beyond your scope should be handled by a professional.
If you think you want to tackle the repair - and have gotten stuck on a step - reply to your question and I will be glad to help you out.
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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!
I just had the same problem last week Aug 1 2009 on our WFK 2401 purchased in 2001
If you hear no motor spinning when it should then it's something with the motor. If you hear motor spinning, esp spin cycle, but the drum doesn't spin, then probably broken belt ($30 part).
Since I work on cars (this is very much like an alternator+belt) and wanted to avoid a $100 service call (just to come to house) and at least try for a quick fix before buying a new washer, I opened the back, confirmed belt looked ok, so tried replacing the brushes in the motor, and it worked.
For a good description on how to do this see http://dossy.org/2007/05/lots-of-miles-on-our-bosch-wfk2401uc-washer-motor/ I took some pics, and time permitting will post more details to this dossy site to help fellow owners. I purchased the brushes at partstap.com for $50 (incl tax+ship)
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!
Thought these additional details might help as we are having a similar problem.
When the washer is turned on we get a blank screen, then after a bit we see the display flash. After sometime flashing then we see it go to normal and we can run it. It is as almost as if it need to warm up...
We can get the display to show faster, by playing with the knob. However, the machine still needs time before we can use it.