I am trying to program sensor to detect motion only at night.It says to press house button once and then unit button then green light will come on.I can't get green light to come on.Help a dummy.
Actually, you have it backwards... press the Unit/Off button once, then press and HOLD the House/On button until the current setting flashes.
If you follow the instruction sheet exactly, it will work.
P.S. I don't recall a Green LED, only Red (not home right now to verify this).