I don't know where my moms wheelchair was purchased, to see if it is still under warrantee

DJ, Did Medicare purchase your Mom's chair? You can contact Sunrise Medical at 1-800-333-4000 and ask if the chair is under warranty. You will have to give them the chair's serial number.

If the chair is less than a year old then all the parts are under warranty except the batteries. If it is not under warranty and Medicare purchased her chair contact Repair Xpress at 1-877-581-3733 to get it repaired medicare will cover 80% of the repair costs Hope this helps you