What does E8 mean?

This fault indicates a communication error between the indoor and outdoor units, typically because the Ecodan was powered up before the FTC(2).

• Ecodan powered on before FTC(2)
• Communication wiring issue
• Incorrect power-up sequence

Click steps to track your progress.

1. 1

   Ensure the FTC(2) unit is powered on before the Ecodan unit.

2. 2

   Inspect communication wiring for damage or loose connections.

3. 3

   Cycle power to both units in the correct order.

4. 4

   Check terminal connections.