CL stands for child lock is on which disables all buttons. Read your manual or download a manual or Google search how to remove child lock on your model. You haven't told us what model number. There should be a button or something on your panel with a padlock symbol or the words child lock.
Lincoln Appliance NZ
September 2014
I can answer this question...
CL appears on screen and tried switching off,cleaning filter etc and won't ?