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
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.
Clean or replace filter (see page 21).
Low supply air temperature
Air in the supply air battery
Bleed the supply air battery.
Trim valve too restricted
Contact your installer!
High supply air temperature
Trim valve not sufficiently restricted.
Contact your installer!
The compressor does not start
There is no heating requirement.
The heat pump does not call on heating nor hot water.
The heat pump defrosts.
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.
Chapter 4 |
Disturbances in comfort
NIBE™ F470
63