No communication with external room temp. sensor module — Incorrect software setting for heating circuit 2

What does 1052 mean?

This alarm is triggered if the installer has selected an external room temperature sensor module to control heating circuit 2, but this module has not been developed or is not physically connected.

• Incorrect software setting: 'Ext. room temp. sensor' for Heating circ. 2 is set to 'Yes' instead of 'No'.

Click steps to track your progress.

1. 1

   Access the Service menu on your system controller.

2. 2

   Navigate to 'Set heating/cooling' -> 'Heating circ. 2'.

3. 3

   Set 'Ext. room temp. sensor' to 'No'. Ensure 'Programming unit' for Heating circ. 2 is set to 'RC100/CR10'.