A164 — Circuit B Down Due to Failure Lockout

What does A164 mean?

Circuit B is locked out. This can occur after accumulating three fault strikes or being triggered by another alarm.

• Circuit B has accumulated 3 fault strikes
• Another alarm has locked out Circuit B

Click steps to track your progress.

1. 1

   Review the fault history and recent alarms for Circuit B.

2. 2

   Resolve any previously indicated issues.

3. 3

   Execute a service test for Circuit B if necessary.

4. 4

   Clear the lockout after correcting the root cause.