Nibe F1155 Series Installer Manual page 60

"Holiday mode" activated in menu 4.7.
■
Enter menu 4.7 and select "Off".
–
External switch for changing the room heating activ-
■
ated.
Check any external switches.
–
Air in the climate system.
■
Vent the climate system (see page 31).
–
Closed valves (QM20), (QM32) to the climate system.
■
Closed valves to the climate system.
(QM40), (QM41) to the climate system.
Open the valves.
–
High room temperature
Too high set value on the automatic heating control.
■
Enter menu 1.1 (temperature) and reduce the offset
–
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.
–
Uneven room temperature.
Incorrectly set heating curve.
■
Adjust the heating curve in menu 1.9.1..
–
Too high set value on "dT at DOT"..
■
Enter menu 5.1.14 (flow set. climate system) and
–
reduce the value of "dT at DOT".
Uneven flow over the radiators.
■
Adjust the flow distribution between the radiators.
–
Low system pressure
Not enough water in the climate system.
■
Top up the water in the climate system (see page
–
31).
Low or a lack of ventilation
This part of the fault-tracing chapter only applies if the
NIBE FLM accessory is installed.
Filter (HQ10) blocked.
■
Clean or replace the filter.
–
The ventilation is not adjusted.
■
Order/implement ventilation adjustment.
–
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
This part of the fault-tracing chapter only applies if the
NIBE FLM accessory is installed.
60 Chapter 10 | Disturbances in comfort
Filter blocked.
■
Clean or replace the filter.
–
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.
–
The compressor does not start
There is no heating requirement.
■
The heat pump does not call on heating nor hot
–
water.
Compressor blocked due to the temperature condi-
■
tions.
Wait until the temperature is within the product's
–
working range.
Minimum time between compressor starts has not
■
been reached.
Wait 30 minutes and then check if the compressor
–
has started.
Alarm tripped.
■
Follow the display instructions.
–
Whining noise in the radiators
■ Closed thermostats in the rooms and incorrectly set
heating curve.
Set the thermostats to max. in as many rooms as
–
possible. Adjust the heating curve via menu 1.1, in-
stead of choking the thermostats.
Circulation pump speed set too high.
■
– Enter menu 5.1.11 (pump speed heating medium)
and reduce the speed of the circulation pump.
Uneven flow over the radiators.
■
Adjust the flow distribution between the radiators.
–
Gurgling sound
This part of the troubleshooting chapter only applies if
the NIBE FLM accessory is installed.
Not enough water in the water seal.
■
Refill the water seal with water.
–
Choked water seal.
■
Check and adjust the condensation water hose.
–
NIBE F1155