D8 — Fault reported by external extension EA1 input DE3

What does D8 mean?

This control mode fault indicates that an external appliance connected to input DE3 of extension EA1 is reporting a fault.

• Fault within the external appliance connected to extension EA1 input DE3
• Wiring issue between the external appliance and extension EA1

Click steps to track your progress.

1. 1

   Identify the external appliance connected to input DE3 of extension EA1.

2. 2

   Check the identified external appliance for its own fault indicators or operational issues.

3. 3

   Inspect the wiring and connections between the external appliance and extension EA1 for any damage or looseness.

4. 4

   Consult the manual for the external appliance for specific troubleshooting steps.