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Re: dishwasher not starting or emptying
Bit difficult to diagnose this but worth while splitting the door and carefully examining the wiring loom where it goes round the corner at the bottom of the door. its quite common to get breakages at this point as it flexes every time you open or close the door
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All of the things that you are describing are controlled by transistor circuits, and relays, and solenoids. The next time it fails would be the time to call a service repairman with the test equipment and training to locate the failing circuit card or component and replace it. The ticking sound could be a bad relay chattering or a defective solenoid opening and closing. There is no way to diagnose the problem remotely. Even if there were it would require special training to locate and replace the part. Hope that is helpful.
I was shown how to clear your dishwasher and keep it running much longer. however, be careful when doing this. start with an empty dishwasher. pour 12 cups of cold water to the bottom area of tub and wearing latex, or rubber gloves, measre and por in exackly 2 cups of ammonia. let that solution sit there either all day, or overnight, at least a few hours, then run it through your machine, do not add anything else. do not do this with small children around. if you prefer buy the largest jug od vinegar (white) and pour it full strength into tub of your macine. let stand sevral hours, then put through a light or regulsr cycle. if you encountet that same problem empty, press drain cycle. retry usingrinse cycle instead. let me know if his resolnves your problem.
When I start a new cycle, I first hear the pump run to empty out all
remaining water, and after that I hear the motor run for the regular
washing cycle, but there is no water in the dishwasher. After a few
minutes, the cycle stops, and the washer claims the dishes are 'clean'.
When I try starting a new cycle over and over again, about one in 20
times, the cycle will run normally with water. But then the next time,
the problem starts all over again. Once a cycle starts correctly,
everything works fine, including the rinsing.
The first thing a Bosch dishwasher does when you start a program is run the waste pump. This ensures that any residual water and waste is removed from the machine before the wash program begins.
The hum you can hear is most likely the pump motor trying to drive the impeller. This can become clogged with waste and seize up, preventing the wash cycle from starting. There is an easy way to check this:
(It's easier to do this with the washer empty)
1: Select a wash program
2. Press "Start" and wait for the humming noise
3. Open the door and pull the bottom basket forward or lift it out completely
4. Find and lift the float (the plastic dome/mushroom in the bottom of the washer) all the way up
5. Keep the float lifted and the dishwasher should pump out. Stop if/when you hear a gurgling noise as this means it's empty and pumping mostly air.
6. If the pump doesn't start, lift the float again for about 1-2 seconds then let it drop again for 1-2 seconds. Repeat this 10-20 times and see if the pump starts. The repeated stop/start signals to the pump motor can sometimes free a seized impeller.
If the pump does start, keep lifting and dropping the float switch (1-2 seconds each time) to see if the pump starts every time. If it does, you should be OK to use the washer, but further action is needed to stop the problem returning.
When you've done all this, post the results here and I'll advise you what to do to fix the problem or prevent it from returning.
These mechanical timer machines have to follow a series of logical steps to complete the program - ie, empty. fill to level 1. wash. heat to temp. etc etc
My guess is the machine is not heating, as you say it works for part of the program - or possibly it is not emptying correctly? check water heating element and drain pump.
Program 4 eco is a separate program from 3, using low temperature washing - the machine does stop between 3 and 4 normally and doesnt carry on through.