Product review (5 stars): Bought a house. Bosch dishwasher ran for 4. ...
Bought a house. Bosch dishwasher ran for 4.5 hours on regular wash cycle rather than 2 hours.  From a Google search, determined that the control unit might have failed.  Seems to be a known problem for this brand of dishwasher.  Had a service repair guy come out and he confirmed issue.  Dishwasher is 8 years old and no longer under warranty (we didn't realize it was so old and thought service call would be covered).  Repair company was going to charge $204 for part + $25 for labor to install new control unit.  Bought control unit from Amazon instead.  Googled how to replace it.  Husband was able to do so within 20 minutes.  Dishwasher runs properly now.  Saved us $94.  Wish we had skipped the first service call!