Honeywell BW MaxXT II - Sensor Alarm; Sensor Failure Detection and Error Display

Sensor Alarm
The detector tests for missing or defective sensors during the startup self-test and continuously
thereafter. If a sensor fails the self-test, Err displays above the gas type of the failed sensor. If a
sensor fails, refer to See "Troubleshooting" on page98 for more information..
BW MaxXT II 64 User Manual