How to Troubleshoot & Replace Whirlpool AP6012579 / WP8299764 Dryer Timer

I replaced the timer on my Roper washer. This resolved the issue and was simple fix. Total time was less then 15 minutes (start to finish). 

Replaced dryer timer. 

Took back off and put new one in, 

Replaced timer 

Removed old timer. Ordered new timer. Installed new timer. Timer arrived next day.Cannot test because the belt broke. Ordered new belt 20 min after ordering timer. Timer came next day via FedEx. Belt was given to FedEx, and they gave it to USPS. Expect delivery 5 days. 

Replaced the parts 

Replaced coils and timer