4 flashes - CT Circuit Malfunction

What does 40 mean?

This error code points to a malfunction within the Current Transformer (CT) circuit. This circuit is responsible for measuring electrical current, and a fault here can disrupt system operation.

• CT Circuit malfunction

Click steps to track your progress.

1. 1

   Turn off the power to the unit.

2. 2

   Inspect the wiring connected to the CT sensors for any damage or loose connections.

3. 3

   Reset the unit by turning off the power for 1 minute.

4. 4

   If the fault persists, a technician needs to test the CT circuit and potentially replace the faulty component.