In most cases, the indoor module notes operational interference (opera-
tional interference can lead to disturbance in comfort) and indicates this
with alarms and shows action instructions in the display.
Info-menu
All the indoor module measured values are gathered under menu 3.1 in
the indoor module menu system. Looking through the values in this
menu can often simplify finding the source of the fault.
info / action
reset alarm
aid mode
Low pressure alarm
alarm
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 indoor module 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 indoor
module 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 many cases, it is sufficient to select “reset alarm” in order
for the product to revert to normal operation. If a green light comes on
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 causing the alarm still remains. If the alarm initially disappears
and then returns, you should contact your installer.
77Chapter 4 | Disturbances in comfortNIBE VVM 320
4 Disturbances in comfort
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