ℹ
info Honeywell
Status MESSAGE LED lights red (steady)
Voice keypad is in record mode.
? What Causes This
Record function has been activated on the voice keypad.
ⓘ What This Means
Speak your message into the microphone. Press [1] Off to end recording. The LED will then flash red to indicate message waiting.
Source: page 7 of the official manual
From the manual
This error code appears in:
Honeywell Vista-20P Security System