This may not fix it but it's always the first thing I try. Unplug the unit, wait 10 minutes, then plug it back in. Turn it on and see if you get the error. If you don't, you just had a small power surge that confused the electronics. If you still do, you'll need someone who knows more about this specific machine.
Answers & Comments
This may not fix it but it's always the first thing I try. Unplug the unit, wait 10 minutes, then plug it back in. Turn it on and see if you get the error. If you don't, you just had a small power surge that confused the electronics. If you still do, you'll need someone who knows more about this specific machine.