Honeywell BW MaxXT II User Manual page 21

8. Self-Test
The detector then performs a self-test to ensure it is operating correctly. The following
screen displays during the test.
Successful Self-Test: If the self-test is successful, the following screen displays.
Unsuccessful Self-Test
Lockout on Self-Test Error Option Enabled: If this option is enabled and a sensor
fails, the following screens display before the detector deactivates.
BW MaxXT II 20 User Manual