EXTRACTION FAULT Bosch — Smoke Damper / Extraction Failure

At a glance

Severity: WARNING THEN STOP
Domain: FIRE_SUPPRESSION_SYSTEM
Reference standard: UNI 9795 / smoke management standards

What it means

Smoke dampers and extraction fans fail on demand: evacuation compromised and smoke in technical rooms during the event.

Probable causes

Failed actuators or stuck dampers
Command not received (panel logic)
Dampers never tested
Extraction fans out of service

Where to start

Functional test of smoke exhaust dampers and verification of the panel command in an alarm scenario.

Full guided diagnosis in the app

The diagnostic tree for this fault has 3 guided steps with measurements, checks and resolutions. You'll find it in DataCIQ, one of the five IndexOS apps: free, works offline.

Open DataCIQ

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The same fault on other brands

DAMPER FAULT Siemens

More Bosch codes

ALARM — False Fire Alarm
DOOR NOT CLOSED — Release with Poor Room Integrity
MULTI ZONE ALARM — Fire Spread via Cable Openings
Batteria bassa — Battery Low / Battery Failure
Batteria bassa — Fire Panel Battery Low
Guasto rivelatore (sporco) — Fire Detector Dirty / Maintenance Required
READER FAULT — Access Control Offline
Tamper — Tamper Alarm / Controller Tampered