Gas Maytag been using since '96. Has always run fine. Last load of laundry dryer tumbled, but did not get hot at any point in the cycle. Would like to order part(s) online and fix it myself, but not sure where to start with diagnosis and subsequent ordering of part(s). Hoping I don't need any special tools or gauges to assess, but if so, any recommendations on those also welcome.

Thanks for your help.