AN-300 FAQ

Q: ​I have an AN300 that displays 100% all the time...What may be the problem? ​

A: This is an indication that the O2 sensor is dead or not connected to the analyzer, likely resulting from a non-functioning sensor or disconnected/broken cable. If the sensor is properly connected to its cable, replace the sensor, part number C77484-N33. ​

For additional questions, please contact Technical Support​​.