ℹ
info Honeywell
Status MESSAGE LED flashes red
Message waiting in voice keypad message center.
? What Causes This
A message has been recorded and is waiting to be played.
ⓘ What This Means
Press FUNCTION [#] + VOICE [0] + PLAY [3] to play the recorded message. The LED will turn off when the message is played.
Source: page 7 of the official manual
From the manual
This error code appears in:
Honeywell Vista-20P Security System