In most cases, the heat pump notes operational interfer-
ence (operational interference can lead to disturbance 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 52 for more information about
menu 3.1.
Manage alarm
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In the event of an alarm, some kind of malfunction has
occurred, which is indicated by the status lamp changing
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 malfunc-
tion has occurred that the heat pump cannot remedy it-
self. 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 prob-
lem 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 prob-
lem that caused the alarm remains. If the alarm disappears
and then returns, see the troubleshooting section (page
70).
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 run-
ning. In this case the immersion heater produces heat
and/or hot water.
Selecting "aid mode” is not the same as correcting the
problem that caused the alarm. The status lamp will
therefore continue to be red.
Troubleshooting
If the operational interference is not shown in the display
the following tips can be used:
Basic actions
Start by checking the following possible fault sources:
႑
The switch's (SF1) position.
႑
Group and main fuses of the accommodation.
႑
The property's earth circuit breaker.
႑
The heat pump's miniature circuit breaker (FA1).
႑
The heat pump's temperature limiter (FD1).
႑
Correctly set load monitor (if installed).
Low hot water temperature or a lack of hot
water
This part of the fault-tracing chapter only applies if the
heat pump is docked to the hot water heater.
႑
Heat pump in incorrect operating mode.
႑
If mode "manual" is selected, select "addition".
႑
Large hot water consumption.
႑
Wait until the hot water has heated up. Tempor-
arily increased hot water capacity (temporary lux)
can be activated in menu 2.1.
႑
Too low hot water setting.
႑
Enter menu 2.2 and select a higher comfort mode.
႑
Too low or no operating prioritisation of hot water.
႑
Enter menu 4.9.1 and increase the time for when
hot water is to be prioritised.
႑
Closed or choked filling valve for the hot water heater.
႑
Open the valve.
Low room temperature
႑
Closed thermostats in several rooms.
႑
Set the thermostats to max in as many rooms as
possible. Adjust the room temperature via menu
1.1 instead of choking the thermostats.
႑
Heat pump in incorrect operating mode.
႑
Enter menu 4.2. If mode "auto" is selected, select
a higher value on "stop heating“ in menu 4.9.2.
႑
If mode "manual" is selected, select "heating".
If this is not enough, select "addition".
႑
Too low set value on the automatic heating control.
႑
Enter menu 1.1 (temperature) and adjust the heat
curve offset of the heat curve. If the room temper-
ature is only low in cold weather the curve slope
NIBE™ F1145Chapter 10 | Disturbances in comfort70
10 Disturbances in comfort
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