How to Troubleshoot & Replace Whirlpool AP6008917 / WP3952499 Timer

First I thought it may be the timer since it wasn't advancing to the next cycle, but after trying that it didn't seem to have any affect. Then I took the front cover of the wash machine off. This was a bit tricky...You have to pry the top piece forward past the bottom cover to get past the plastic pins. Then there are two screws holding the front plate in place. After removing them you can lift the cover off and get to the inside of the machine. Once I was able to see inside the washing machine I noticed the switch looked a little weak. I then pushed up on the switch and the washer went to the next cycle (I don't recommend having this hooked up to the power, should be able to tell that lid switch is bad without digging this deep). Ultimately I replaced the switch and got it working again. 

Initially suspected timer, but it did advance during some cycles. the schematic on the unit and other input on this site helped to confirm that the water level switch was at fault 

Just watching some of your appliancepartspros.com videos on how to do it and install it. 

Replaced timer. 

Using the internet to diagnose the problem and identify the parts needed. I ordered the parts from AppliancePartsPros. They were shipped the same day and received two days later. Following the assembly and disassembly instructions that I located, I was able to change the parts within 1 1/2 hours. The machine works great. I was extremely pleased with the pricing and the quick shipping of parts from AppliancePartsPros.com.