ADE/Honeywell SS/01 fob reader

[regdul]

Hi,

I have an ADE/Honeywell SS/01 reader (connected to an Optima 4 Compact with another remote keypad), which worked fine for over a year, but now it ignores all fobs (both learned and unlearned ones), no beeps, nothing. The "Power" and "Day" LED are on all the time, even if the system is set. All other parts of the alarm system work fine without any issues.

Any idea what's going wrong?

Thanks.

 

[regdul]

This morning, I've simply powered down the alarm system (switched off mains supply and disconnected the battery), which seems to have done the trick. The fob reader is working again.