Alarm Z1 Low pressure sensor JR0 fault — Repeated low pressure sensor fault

What does 5434 mean?

This alarm triggers if warning 5432 is registered three times within 15 minutes, or if the circuit is continuously broken for 15 minutes. It signifies a persistent issue with the low pressure sensor JR0.

• Poor connection in cabling or terminal 17,19 on the I/O module.
• Defective pressure sensor JR0.
• Defective I/O module.

Click steps to track your progress.

1. 1

   Check the cabling and terminal connections (17 and 19) on the I/O module, ensuring they are securely fastened.

2. 2

   If the alarm persists, contact a qualified technician to diagnose the pressure sensor or I/O module.

3. 3

   Do not attempt to replace sensors or I/O modules yourself unless you are a qualified installer.