MULTI ZONE ALARM Bosch — Fire Spread via Cable Openings
At a glance
- Severity
- FAULT STOP
- Domain
- FIRE_SUPPRESSION_SYSTEM
- Reference standard
- DPR 151/2011 / UNI compartmentation standards
What it means
Fire or smoke spreads through unsealed cable penetrations between rooms: nominal compartmentation does not match reality.
Probable causes
- Cable penetrations left open after new installations
- Degraded or never-restored fire stopping
- Raised floor and ceiling voids as propagation paths
- Plant changes not followed by verification
Where to start
Inspect cable routes and floor/ceiling cuts between compartments: map the unsealed openings.
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.
Printable sheet + Bosch updates
Leave your email: get the link to the printable Bosch error-code sheet and a heads-up when we add new codes and guides.
Double opt-in, zero spam, one-click unsubscribe.
The same fault on other brands
More Bosch codes
- ALARM — False Fire Alarm
- DOOR NOT CLOSED — Release with Poor Room Integrity
- EXTRACTION FAULT — Smoke Damper / Extraction Failure
- 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