Disturbances In Comfort; Info-Menu; Manage Alarm; Troubleshooting - Nibe F1245 Installer Manual

10 Disturbances in comfort

In most cases, the heat pump notes operational inter-
ference (operational interference can lead to disturb-
ance in comfort) and indicates this with alarms and
shows action instructions in the display.

Info-menu

All the heat pump measurement values are gathered
under menu 3.1 in the heat pump menu system.
Looking through the values in this menu can often
simplify finding the fault source. See page 48 for more
information about menu 3.1.

Manage alarm

In the event of an alarm, some kind of malfunction has
occurred, which is indicated by the status lamp chan-
ging from green continuously to red continuously. In
addition, an alarm bell appears in the information
window.
Alarm
In the event of an alarm with a red status lamp a mal-
function has occurred that the heat pump cannot
remedy itself. In the display, by turning the control knob
and pressing the OK button, you can see the type of
alarm it is and reset it. You can also choose to set the
heat pump to aid mode.
info / action Here you can read what the alarm means
and receive tips on what you can do to correct the
problem that caused the alarm.
reset alarm In most cases it is enough to select "reset
alarm" to correct the problem that caused the alarm.
If a green light illuminates after selecting "reset alarm"
the alarm has been remedied. If a red light is still visible
and a menu called "alarm" is visible in the display, the
problem that caused the alarm remains. If the alarm
disappears and then returns, see the troubleshooting
section (page 69).
aid mode "aid mode" is a type of emergency mode.
This means that the heat pump produces heat and/or
hot water despite there being some kind of problem.
This can mean that the heat pump's compressor is not
running. In this case the immersion heater produces
heat and/or hot water.
Caution
Selecting "aid mode" is not the same as correct-
ing the problem that caused the alarm. The
status lamp will therefore continue to be red.
NIBE™ F1245

Troubleshooting

If the operational interference is not shown in the dis-
play the following tips can be used:
Basic actions
Start by checking the following possible fault sources:
The switch's (SF1) position.
Group and main fuses of the accommodation.
The property's earth circuit breaker.
The heat pump's miniature circuit breaker (FA1).
The heat pump's temperature limiter (FD1).
Correctly set load monitor (if installed).
Low hot water temperature or a lack of hot
water
Closed or choked filling valve for the hot water
heater.
Open the valve.
Heat pump in incorrect operating mode.
If mode "manual" is selected, select "addition".
Large hot water consumption.
Wait until the hot water has heated up. Temporar-
ily increased hot water capacity (temporary lux)
can be activated in menu 2.1.
Too low hot water setting.
Enter menu 2.2 and select a higher comfort mode.
Too low or no operating prioritisation of hot water.
Enter menu 4.9.1 and increase the time for when
hot water is to be prioritised.
Low room temperature
Closed thermostats in several rooms.
Set the thermostats to max in as many rooms as
possible. Adjust the room temperature via menu
1.1 instead of choking the thermostats.
Heat pump in incorrect operating mode.
Enter menu 4.2. If mode "auto" is selected, select
a higher value on "stop heating" in menu 4.9.2.
If mode "manual" is selected, select "heating". If
this is not enough, select "addition".
Too low set value on the automatic heating control.
Enter menu 1.1 "temperature" and adjust the offset
of the heating curve. If the room temperature is
only low in cold weather the curve slope in menu
1.9.1 "heating curve" needs adjusting up.
Too low or no operating prioritisation of heat.
Enter menu 4.9.1 and increase the time for when
heating is to be prioritised.
"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.
Circulation pump(s) (GP1 and/or GP2) stopped.
See section "Helping the circulation pump to start"
on page 64.
Chapter 10 | Disturbances in comfort 69