!!
critical Honeywell
Error Code FIRE
A fire alarm has been generated, either automatically by smoke/heat detectors or manually activated.
? What Causes This
Smoke or heat detected by fire detectors, or manual fire alarm activation.
✓ How to Fix It
Evacuate the premises immediately. Contact the fire department from a safe location. Press the OFF key to silence the keypad alarm. If no fire is apparent, investigate the cause and clear smoke detectors by fanning for 30 seconds.
Source: page 10 of the official manual
From the manual
This error code appears in:
Honeywell Vista-20P Security System