I recently installed several Z-wave wall switches, requiring turning off circuit breakers.
One of the breakers happened to power my Concord 4 panel.
The power was shut down for a few hours.
After restoring power, both of my ATP-1000 panels displays no longer stay on.
They do light and show text when pressing buttons, but go blank after a few seconds when there are no button depressions.
I have tried the obvious brightness and contrast settings for the panels. These do not correct the issue.
Any ideas on what setting may have changed while the system was on battery for those 4 hours?
Thanks in advance,