■
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.
■
Wait 30 minutes and check if the compressor has
started.
■
Alarm tripped.
■
Follow the display instructions.
61Chapter 10 | Disturbances in comfortNIBE™ F370
To Next Page
Loading...
Need help?
General
