Beko DSN 6532X dishwasher strange behaviour

[quantum_quantum]

Hi All,

I have a Beko DSN6532X dishwasher, which last week failed completely. My wife is using it usually on program 4 (58 minutes) .
The machines starts its cycle, after a few seconds the decimal points stops to blink (during all the normal operation these blink), and the machine does nothing anymore. This repeats after each reset (3-4 second hold of the strat/stop button. I open the machine, and check the water inlet valve, and I go further and found a intrerupted wire from the flood sensor to the control board of the machine. I replaced the wire, and the machine starts to operate. However, I noticed a strange behaviour. Sometimes, during the washing cycle (between minute 58 down to 28), the decimal points stops blinking, and the timer suddenly resets to 58. The cycle is started again, sometimes goes to the full program, sometimes the reset is repeated.I searched the internet, and after a few trials, I figured out how to enter to the service mode of the machine. The display is an LCD type, after I power on the machine with both start/stop and detergent buttons pressed (for 7-10 seconds), the whole display is light up, and after that shows S:Ft. The test programs can be started with the press of start/stop button ( I noticed that the P6 test program takes 20-30 minutes???). When the machine resets during normal operation, after entering in test mode an error code er1 is displayed (when I entered for the first time in the test mode alternating error codes were displayed, I remember er1, 2,3 and 7)now, when er1 is displayed, I can’t run anymore the testprograms, each time I press the start/stop button, the test programs fail to run, and er1 is displayed again. Poweing off the machine, and starting in normal operation mode sometimes result in complete normal cycle operation, sometimes the described reset is repeated. If the machine finished the washing cycle (down to minute 28), everything is working fine, and reach minute 0 without problems. Can anyone give me some hints, what the error codes er1,2,3 and 7 means, how the error codes can be cleared (after solving the cause of them), and if the test programs (1 thru 9) can be executed individually?

Thanks in advance,

George

PS. I have DIY skills, so I suppose that with a little guidance I can solve the problem

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