Someone posted the same complaint awhile back and another poster said that his did the same thing. That seemed to satisfy them as neither one ever posted again. It just doesn't seem normal to me. If the unit is less than 90 days old why don't you call this number 1-800-528-5880 and see if they have any ideas. That is the number of the manufacturer and they will ask for your model number. If they help please post back with their answer so we can help others in the future.