Alarm Z1 Air inlet sensor TL2 fault — Air sensor failure

What does 5410 mean?

This alarm is triggered if 3 warnings (codes 5408, 5409) occur within 2 hours, or if the sensor TL2 is continuously shorted or broken for 15 minutes.

• Problems with the air inlet sensor TL2 or its connection.
• Issues with the I/O module.

Click steps to track your progress.

1. 1

   Disconnect sensor TL2 from the installer module and check the Ohm value for the sensor and cable.

2. 2

   Compare the measured values to the sensor table in the documentation.

3. 3

   If the sensor or cable readings are abnormal, replace the sensor or repair the cable.

4. 4

   If readings are normal but the alarm persists, the I/O module may need replacement.