I just installed the utlimate 22 piece system at my Girlfriend's place this weekend. Last night she told me that she armed the system as "Armed Home" so the motion sensor was off. She said in the middle of the night the remote control panel (SH624) made a buzzing sound. There were no sirens, and I believe no zone alerts when she checked the control panel this morning.
Any idea what causes the SH624 to make sounds/noise?
Thanks
