Modbus Connection Issue

Ensure the termination resistor is securely fitted to the correct terminals, either in the controller at the end of the Modbus daisy chain. The system must be powered off before performing this check, and powered back on before re-running it.

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Note: If there’s more than just Homely and the heat pump in the daisy chain, put the termination resistor at the other end. Homely should be at the other end, as it already has a resistor built in.