Red LED solid — Active alarm indicating a malfunction

What does Red LED solid mean?

When an alarm occurs, the indoor module's status lamp will shine with a steady red light. This indicates a malfunction that the NIBE VVM S320 cannot fix on its own. Information about the alarm is also shown on the smartguide display.

• System malfunction requiring user or installer intervention.
• Problem the VVM S320 cannot automatically remedy.

Click steps to track your progress.

1. 1

   Check the display for specific alarm information and instructions.

2. 2

   On the display, select "Reset alarm and try again." If a white light appears, the alarm is resolved.

3. 3

   If the alarm persists, consider selecting "Start auxiliary mode" (emergency mode) to maintain some comfort, but be aware the red light will remain.

4. 4

   If "Auxiliary operation" is needed, ensure it is selected in menu 7.1.8.1 - "Alarm actions" and understand it does not fix the root problem.

5. 5

   If the alarm cannot be reset or keeps recurring, contact your installer for further assistance.