How Should Fire Door Maintenance History Be Used in Diagnosis?

A maintenance record can be one of the best tools available when a fire-door problem has been going on for months. But only if you read it as a history of changes rather than a list of repairs. Look for repeated words If the notes say: “closer adjusted” “strike moved” “hinges tightened” “door planed” “seal replaced” and then the same fault appears again, that pattern matters. Someone may have been treating the symptom each time. Put the dates beside the fault Work out when the problem first appeared. Then look at what happened immediately before it. New hinges? New seals? New floor finish? New closer? Frame repair? Decorating? Access-control installation? A recent intervention does not prove causation, but it changes what I would inspect first. The record can expose a hidden geometry change Suppose a report from six months ago…