4
Disturbances in comfort
In most cases, the heat pump notes operational interference and indicates
this with alarms and shows instructions in the display. See page 67 for in-
formation about managing alarms. If the malfunction does not appear in
the display, or if the display is not lit, the following troubleshooting guide
can be used.
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 con-
tinuously. In addition, an alarm bell
appears in the information window.
Alarm
In the event of an alarm with a red
status lamp a malfunction has oc-
curred that the heat pump cannot
remedy itself. In the display, by turn-
ing 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 select-
ing "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, contact your
installer.
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 correcting the problem that caused
the alarm. The status lamp will therefore continue to be red.
If the alarm does not reset, contact your installer for suitable remedial ac-
tion.
67NIBE™ F1255Chapter 4 | Disturbances in comfort
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