The dishwasher runs and washes normally but continues running while displaying a "1". I replaced the Heater relay to no avail. Followed a procedure to measure resistance on the Aqua Sensor and find it reads less than 1ohm. The Manual indicates that it should read about 1 Meg ohm. Pulled the sensor and got the same resistance. Do you think that is causing the continuous running and display of "1" or do I have problems. All other resistance measurements seem to be ok.
Answer Hello Steve,
This is normally cause by a water valve not opening all the way which in turn causes the water to drizzle out of a port hole into the main base, floating the flood switch. This causes the drain pump to run constantly and in some cases, (depending o the wiring configuration), even with the door opened. Removing the kick panel and moving the red flood switch activating rod will turn it off. Water will be standing in the main base if this is the issue. This water has to be removed with a towel or shop vac, (be careful not to damage the styrofaom float). Replacing the water valve 00425458 and removing the standing water in the main base corrects the issue.
The dishwasher works but the timer goes to 1 and stays till you turn off. Replaced the control module and still goes to 1 and stays. Upon running diagnostics I get a 3 which is aqua sensor and heating fault. Water did seem to get hot though and sometimes the tablet would not fall out.
You will need to check under the unit and check to make sure that there is no water in the base plate. If there is then this would be the cause. If water is in the baseplate then the flood switch is seeing this and causing the drain to continue to run until the water is sensed not being there.
I have a Bosch model 8806.
At first I would find the deterent tablet on the bottom of dishwasher never dissoved. Now the dishwasher doesn't even start when you turn it on.
What is the problem?
You will want to check to make sure that there is power getting to the control board. If the Control board has power going into it and the door switches are good then you would need a new control unit.