We have a Maytag Quiet Series 300 dishwasher Model #MDB8600AWW, we purchased it new about 9 years ago. What we are experiencing is that it has a mind of its own when deciding to run a wash cycle. It will fill with water and then just time out, no signal to run the motor. Sometimes it will work great for 4 or 5 loads and then goes back to its dormant state. The problem I am having is which control board do I need? The serial number for the dishwasher is 14126646AX. Any and all help would be greatly appreciated! Thank you.