"LOC" readout

Does anyone know what a “LOC” reading on my electric dryer (Electrolux AEQ7000ES1) means? It gives that readout, then beeps when you hit any button, even the cancel button (i.e., it does nothing–will not start). You can open and close the door. Thanks for any help on this.
-Seattle Mom:confused:

Here are the operating instructions
http://manuals.frigidaire.com/prodinfo_pdf/Webster/134609300es.pdf

See page 2 “Dryer Features”