ALARM issue

Just installed and configured the controller yesterday and I have constantly the "ALARM" text blinking on the display.
I didn't activate any of the alarm settings for the probes, temp etc.
Any hints what else could cause the alarm?

Thanks for any help
Michael

Do you have an ORP connection? If so, is the null plug attached? If not, try that and see if it goes away.

Yep..That was it. Alarm is gone now
Thanks for your help
Michael

Maybe better: Deactivate all unused inputs.