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critical Honeywell

Error Code Loud, continuous alarm

Burglary alarm or audible emergency alarm has been triggered.

? What Causes This

Intrusion detected on an armed burglary zone or emergency panic function activated.

How to Fix It

Disarm the system using your security code plus the OFF key. If you are not the authorized person, leave the premises and contact police from a safe location.

Source: page 51 of the official manual

From the manual

Manual page 51 — Honeywell error Loud, continuous alarm

This error code appears in:

Honeywell Vista-20P Security System