AC Loss

POSSIBLE CAUSE
- Interrupted AC power supply. 
Remedy

Check transformer connection and
powerline circuit breaker. 

The Honeywell Lyric Controller has the ability to detect loss of power. An AC LOSS occurs when the primary input voltage drops below 9VDC. AC Loss will be displayed on the screen. After approximately 1 minute of Power Loss and no keypad activity, assuming the backup battery is good, the entire Touch Screen will go dark in order to conserve the battery regardless of programming.

The Maximum distance between the Power Supply and the Lyric Controller is 8ft with 22 gauge wire, 13ft with 20 gauge and 22ft with 18 gauge 2 conductor wire.