Dryer does not display correct time for selector switch setting

We had a brief electrical outage when our dryer was working - I was actually in front of the dryer taking clothes out (on timed dry cycle ) and the dryer beeped, all the lights lit up and it powered off, then on. No dryer error codes were displayed. When it powered on, I noticed that the time on the display no longer corresponds to the setting on the selector switch. For instance, the timed dry setting used to be 12 minutes but now shows 3 dashes on the display. Other cycles are similarly affected. The small load setting also shows 3 dashes as does the towels setting. Any ideas?