What causes fault code ASRS-004 (AS/RS Fire Suppression Activated)?

Actual fire — smoke or heat detected in rack area. Smoke detector false alarm — dust, steam, or HVAC blowing near detector. Sprinkler head damaged by crane or product — leaking. Linear heat detection cable damaged. Fire panel in trouble mode — wiring fault or dirty detector

How do I fix fault code ASRS-004?

EVACUATE AREA and call fire department if actual fire suspected. If false alarm confirmed, reset fire alarm panel per site procedure. Check smoke detectors — clean with compressed air if dusty. Inspect sprinkler heads along crane travel path for physical damage. Review fire panel event log for specific zone/device that triggered. Do NOT restart crane operations until fire marshal or safety manager approves

AS/RS Fire Suppression Activated

ASRS-004

Fire suppression system in AS/RS rack area has activated or pre-alarm triggered. All crane operations suspended.

critical asrs

asrs fire suppression safety smoke detector

Probable Causes (ranked)

Actual fire — smoke or heat detected in rack area
Smoke detector false alarm — dust, steam, or HVAC blowing near detector
Sprinkler head damaged by crane or product — leaking
Linear heat detection cable damaged
Fire panel in trouble mode — wiring fault or dirty detector

Fix Steps

1 EVACUATE AREA and call fire department if actual fire suspected
2 If false alarm confirmed, reset fire alarm panel per site procedure
3 Check smoke detectors — clean with compressed air if dusty
4 Inspect sprinkler heads along crane travel path for physical damage
5 Review fire panel event log for specific zone/device that triggered
6 Do NOT restart crane operations until fire marshal or safety manager approves

Field Trick

If it's a VESDA system (aspirating smoke detection), check the filter. A clogged filter causes false alarms. Replace filter and fault often clears.

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