Troubleshooting

Problem	Possible Cause	Solution
Detector does not display normal gas reading after startup sequence	Sensor not stabilized	Used sensor: wait 60 seconds. New sensor: wait 5 minutes.
	Sensor requires calibration	Calibrate the detector.
	Target gas is present	Detector is operating properly. Use caution in suspect areas.
Detector does not respond to button	Battery is in critical low battery state or is completely depleted	Replace the battery.
Detector does not respond to button	Detector is performing operations that do not require user input	Button operation restores automatically when the operation ends.
Detector does not accurately measure gas	Sensor requires calibration	Calibrate the detector.
	Detector is colder/hotter than gas temperature	Allow the detector to acquire ambient temperature before use
	Sensor filter is blocked	Clean the sensor filter
Detector does not enter alarm	Alarm setpoint(s) are set incorrectly	Reset the alarm setpoints.
	Alarm setpoint(s) set to zero	Reset the alarm setpoints.
	Detector is in calibration mode	Complete calibration
Detector intermittently enters alarm without reason	Ambient gas levels are near alarm setpoint or the sensor is exposed to a puff of hazardous gas	Detector is operating normally. Use caution in suspect areas. Check MAX gas exposure reading.
	Alarm setpoints are set incorrectly	Reset the alarm setpoints
	Detector requires calibration	Calibrate the detector.
	Missing or faulty sensor	Change the sensor.
Features and options are not operating as expected	Changes in Fleet Manager II	Verify the setup in Fleet Manager II.
Battery has been charging for 6 hours. Charging indicator on LCD shows the battery is still charging	Battery is trickle charging	Verify the charger is properly connected to the AC outlet.
Battery indicator does not display when charging	Battery is depleted below normal levels	Replace the battery.
Battery does not charge		Replace the battery.
Sensor fails to zero during startup self-test		Change the sensor.
The detector does not activate.	Depleted battery.	Replace the battery.
The detector does not activate.	Damaged detector.	Contact JJS Technical Services
Detector automatically deactivates.	Automatic deactivation due to critical low battery.	Replace the battery.
	Lockout on Self-Test Error is enabled and a sensor(s) has failed the startup self-test.	Change the sensor.
	Sensor(s) require calibration.	Calibrate the detector.