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GasAlertMaxXT II
User Manual
Table 7. Troubleshooting
Problem Possible Cause Solution
Detector intermittently enters alarm 
without reason.
Ambient gas levels are near alarm 
setpoint or the sensor is exposed to a 
puff of the target gas
Detector is operating normally. Use caution in 
suspect areas. Check maximum gas exposure 
reading.
Alarms are set incorrectly Reset the alarm setpoints. Refer to Resetting 
Gas Alarm Setpoints.
Sensor(s) requires calibration Calibrate the sensor(s). Refer to Calibration
.
Missing or faulty sensor(s) Replace the sensor(s). Refer to Resetting Gas 
Alarm Setpoints.
Battery has been charging for 6 hours. 
Charging indicator on LCD shows the 
battery is still charging.
Battery is trickle charging Battery is fully charged and is ready for 
operation.
Battery indicator does not display when 
charging. 
Battery is depleted below normal 
levels
Charge the battery for 8 hours. If the battery 
indicator does not light after charging, contact 
BW Technologies by Honeywell
.
Pump is not operating. Diffusion cap is off or not attached 
correctly.
Attach diffusion cap. Ensure seal is tight.
There is a blockage in the tubing. Clear the blockage.
Particulate and/or moisture filter requires 
replacement
Replace the filter(s). Replacing the Pump Fil-
ters.
Features and options not operating as 
expected.
Changes in Fleet Manager II Verify that the settings in Fleet Manager II are 
correct.