Nibe F370 Installer Manual page 63

External switch for changing the room heating activ-
■
ated.
Check any external switches.
■
Circulation pump (GP6) stopped.
■
Air in the heating system.
■
Vent the heating system (see page 30).
■
Closed valves (QM31), (QM32)to the heating system.
■
Open the valves.
■
High room temperature
Too high set value on the automatic heating control.
■
Enter menu 1.1 (temperature) and reduce the off-
■
set heating curve. If the room temperature is only
high in cold weather the curve slope in menu 1.9.1
"heating curve" needs adjusting down.
External switch for changing the room heating activ-
■
ated.
Check any external switches.
■
Low system pressure
Not enough water in the heating system.
■
Top up the water in the heating system (see page
■
30).
Low or a lack of ventilation
The ventilation is not adjusted.
■
Order/implement ventilation adjustment.
■
Filter (HQ10) blocked.
■
Clean or replace the filter.
■
Exhaust air device blocked or throttled down too
■
much.
Check and clean the exhaust air devices.
■
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/implement 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 (HQ10) blocked.
■
Clean or replace the filter.
■
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 re-
■
set.
Minimum time between compressor starts has not
■
been reached.
NIBE™ F370
Wait 30 minutes and check if the compressor has
■
started.
Alarm tripped.
■
Follow the display instructions.
■
Chapter 10 | Disturbances in comfort 61