i have a hitec 645 servo that just quit working all of a sudden and also have a hitec 5625 that sometimes, not very often doesnt center.

both servos are less than 3 weeks old
i have the receipts

where do i send them and also will it cost me to fix them or are they under warranty.

http://www.hitecrcd.com/Support/ServiceAndRepairSFS.htm

I've recieved good customer service from Hitec in the past. Send them in & they'll take care of you!