Category: General

How do I silence my ADT keypad?

How do I silence my ADT keypad? For many of our most popular systems, beeping alarms and low battery trouble beeps can be silenced by pressing the [OFF] o...

How to fix error code 99?

How to fix error code 99? Clear the CMOS battery Perhaps the most common trigger for error 99 is the temporary data that your CMOS battery failed to flush...