This evening sx-50 console started ringing with all alarm lights once flashed and now it keeps ringing. It is showing time & date and Night is on. No button works on console not even after rebooting system couple times, the console starts ringing once power is on and do not stops. The Night works fine with Auto-Attendant connected. Calls seems to go through.

Is console having some fault and need to be repaired/replaced?

Please help.

Thanks