An error has occurred in the machine.
Turn the machine off, and then turn it on again.
If the machine is relocated from a cold area to a warm area or the machine is placed in a room where the temperature varies greatly, condensation may form inside the machine causing errors. If this happens, perform the decondensation procedure. See De-condensation.
If the error still does not clear after the machine acclimates to room temperature and the power is turned back on, contact your sales or service representative.