Alarm 350 — Room sensor BT50 not connected

What does Alarm 350 mean?

The system detects that room sensor BT50 is enabled for control in the settings but is not physically connected. This will cause an alarm and prevent proper room temperature regulation.

• Room sensor BT50 is activated for control in settings but is not physically connected.
• Faulty wiring or connection to the BT50 sensor.
• BT50 sensor itself is damaged or malfunctioning.
• System incorrectly configured to expect BT50.

Click steps to track your progress.

1. 1

   If BT50 is required, ensure it is securely connected to the system's designated terminals.

2. 2

   If BT50 is not installed, deactivate its control function in the system's menus to clear the alarm.

3. 3

   Check the wiring to BT50 for any damage or loose connections.

4. 4

   Restart the NIBE SMO 20 control module.

5. 5

   Update the NIBE SMO 20 firmware to the latest version.