In most cases, the heat pump notes operational interference and indicates
this with alarms and shows instructions in the display. See page 76 for
information 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
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 continuously. 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 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 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.
NIBE F1255Chapter 4 | Disturbances in comfort76
4 Disturbances in comfort
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