An alarm on one route alone does not prove general equipment failure; review container and process records together.
Locate the alarm
Match alarm time with GPS trace, stops, door openings and load records.
If locations do not align, verify clock settings and the time basis of each record.
Run a comparison trip
- Alarm time and location
- Container identity
- Stop activity
- Load profile
Compare different containers on the same route and the same container on another route to find a repeat pattern.
If it recurs, preserve evidence and escalate for quality review; adding coolant before finding the cause can hide it.
