I have a Bosch Dishwasher SGS46E22GB which is exhibiting issues with the program times. I'll explain, when the machine is first put on the timer shows 133mins. it counts down logically to 90mins then jumps to 45mins and then continues couting down to zero until the wash completes. The numbers that it jumps change during each different wash cycle. If anyone can provide some guidance on what the cause and fix is it would be greatly appreciated.