A couple nights ago, my GC3 system was armed (stay) and the "cell tamper" triggered the alarm.
I currently do not have a cell module installed and the cell tamper push button is secured with the machine screw.
Both "Q31: Radio network failure causes trouble" and "Q32:Radio network failure reports" are disabled, but "Q30: Radio modem network failure time" was still at the default 30 minutes.
After clearing the alarm and checking all the doors/windows. I attempted to re-arm the system and pressed near to top-left of the display and again the "Cell Tamper" triggered the alarm.
Curious if anyone has experienced this issue, or knows of a fix". I plan to check the momentary push button that is used to detect "cell tampers", could be a loose solder joint or bad button.