Honeywell Galaxy Dimension mystery (moved)

[Wejr]

Hi
Last night my keypad sounded (alarm off at the time) and it showed a fault of +RF Entrance Hall
It emitted a tone a few times before I entered my code to see the fault. It did it again this morning. Cant find this fault code in the manual. I think it relates to the wireless door sensor I have. On inspection, the sensor seems fine. Anyone have any idea what the cause may be? The system has been running fine for years and nothing has been altered recently.
Thank you

 

[sparkymarka]

Try posting on the alarm section .....galaxy guy will shed some light on it ....but at a guess the hall wireless detector had some type of RF blocking ....? Wireless heating controller with low battery ?