Can I remove the base panel to clean or repair the coffee maker?

No, do not remove the base panel. There are no user-serviceable parts inside. To reduce the risk of fire or electric shock, repairs should be done only by authorized Cuisinart service personnel. If the appliance malfunctions or has been damaged, return it to the nearest Cuisinart Repair Center for examination and repair. (Page 1 — Important Safeguards)