COMM FAIL Honeywell — Fire Panel Communication Error
At a glance
- Severity
- FAULT STOP
- Domain
- FIRE_DETECTION
- Reference standard
- EN 54-21 / UNI 9795
What it means
The panel no longer communicates with the alarm receiving centre or the supervision system: error on the transmission module or the IP/GSM channel. Check the network link, IP and port configuration after recent work, and firewall or router blocks.
Probable causes
- Network connection to the alarm receiving center interrupted
- Transmission module faulty
- IP/port configuration incorrect after maintenance
- Firewall or router blocking communication
Full guided diagnosis in the app
The diagnostic tree for this fault has 5 guided steps with measurements, checks and resolutions. You'll find it in BASIQ, one of the four IndexOS apps: free, works offline.
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More Honeywell codes
- BAT FAIL — Fire Panel Battery Low
- TAMPER — Fire Zone Fault / Open Circuit
- BAT FAIL — Battery Low / Battery Failure
- COMM FAIL — Communication Lost / Controller Offline
- COMM FAIL — Reader Offline / Reader Not Communicating
- KEYPAD FAIL — Keypad / Keyboard Fault
- TAMPER — Tamper Alarm / Controller Tampered
- TAMPER — Zone Tamper / Cover Open