Operational interference with no display message — System not working correctly

What does No display message / Interference mean?

The NIBE SMO 40 or connected system is experiencing problems or not working as expected, but no specific alarm or error message is shown on the display. This indicates a general operational disturbance.

• The main switch (SF1) is in the wrong position.
• Group or main fuses for the accommodation have tripped.
• The miniature circuit breaker for SMO 40 (FA1) has tripped.
• The property's earth circuit breaker has tripped.
• The load monitor (if installed) is not set correctly.

Click steps to track your progress.

1. 1

   Check the position of the main switch (SF1).

2. 2

   Inspect the group and main fuses for your accommodation.

3. 3

   Verify the miniature circuit breaker for SMO 40 (FA1).

4. 4

   Check the property's earth circuit breaker.

5. 5

   Ensure the load monitor (if installed) is set correctly.