RELEASE CIRCUIT FAULT Siemens — Suppression Release Failure
At a glance
- Severity
- E STOP
- Domain
- FIRE_SUPPRESSION_SYSTEM
- Reference standard
- UNI EN 15004 / DPR 151/2011
What it means
Confirmed alarm but no agent release: failed solenoid, discharged cylinders or blocked logic. The fire is not extinguished.
Probable causes
- Release solenoid failed or command never arrived
- Cylinders below required pressure
- Logic left in manual hold
- Activation circuit interrupted (open circuit, interlocks)
Where to start
After the event: check cylinder status (weight/pressure), solenoid, activation circuit and manual hold positions.
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.
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The same fault on other brands
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