Nibe F1155 - Page 74

Low system pressure
■
Not enough water in the climate system.
■
Top up the water in the climate system.
Low or a lack of ventilation
This part of the fault-tracing chapter only applies if the NIBE FLM accessory
is installed.
■
The ventilation is not adjusted.
■
Order ventilation adjustment.
■
Filter blocked.
■
Exhaust air device blocked or throttled down too much.
■
Fan speed in reduced mode.
■
Enter menu 1.2 and select "normal".
■
External switch for changing the fan speed activated.
■
Check any external switches.
High or distracting ventilation
This part of the fault-tracing chapter only applies if the NIBE FLM accessory
is installed.
■
The ventilation is not adjusted.
■
Order ventilation adjustment.
■
Fan speed in forced mode.
■
Enter menu 1.2 and select "normal".
■
External switch for changing the fan speed activated.
■
Check any external switches.
■
Filter blocked.
The compressor does not start
■
There is no heating requirement.
■
The heat pump does not call on heating nor hot water.
■
Temperature conditions tripped.
■
Wait until the temperature condition has been reset.
■
Minimum time between compressor starts has not been reached.
■
Wait 30 minutes and check if the compressor has started.
■
Alarm tripped.
■
Follow the display instructions.
NIBE™ F1155Chapter 4 | Disturbances in comfort74