When doing your own appliance repair look for websites or books that are managed and written by actual service technicians, not just other do-it-yourselfers that have written in tips and advice. While the blog type sites may be helpful, they also may be completely incorrect and inaccurate.
Contacting the store that you purchased the appliance from is often the first step in finding a certified service technician in your area. Most stores will have lists of recommended repair professionals and may even offer their own repair people that can quickly respond to your appliance problem.