ED - Serial communication fault between Ecodan main and inverter boards

¿Qué significa ED ?

This fault indicates a serial communication error between the Ecodan's main board and its inverter board, often due to loose cable connections.

• Loose CN2 or CN5 cable
• Faulty communication between boards
• Damaged cable

Haga clic en los pasos para seguir su progreso.

1. 1

   Check the connection of the CN2 cable.

2. 2

   Ensure the CN5 cable is securely connected.

3. 3

   Inspect the cables for any signs of damage.

4. 4

   Restart the Ecodan unit after checking connections.