Dryers should be serviced one a year to have the brush dust and hair blown out. The brushes, motor and any other components should be checked for wear too. I do this for my local customers and if someone wants to ship me one that is fine too.
The shipping is what can get costly, not to mention the time you are with out the unit. If you can find a place local it will be quicker and cheaper. Vacuum cleaner repair centers should be able to do a dryer and if they can't check with local janitorial places to see where they get their floor dryers fixed. Dryers are not a complicated piece of equipment they are just a motor, switch, and heating elements, but some of them are just a pain to take apart or put back together.
Tim Love............... Love's Sharpening
123 A Hwy 80 E., #3
Clinton, MS 39056....phone: 601-529-1973