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9 Disturbances in comfort
In most cases, GV-HR 130 detects a malfunction (mal-
functions can lead to disruptions in comfort) and indic-
ates this with an alarm in the display.
Info-menu
All the installation's measurement values are available
from the menu Operation info in the display. Examining
the values in this menu can often make it easier to
identify the source of the fault. See help menu or user
manual for more information about menu Operation info.
Manage alarm
Alarm!
Chg. filter
Extract
If there is an alarm, some kind of malfunction has oc-
curred, which is shown by text in the display.
ALARM
If there is an alarm, a malfunction has occurred that GV-
HR 130 cannot rectify itself. The display shows what
type of alarm it is.
30
Chapter 9 | Disturbances in comfort
Error message
Control stopped
Change the filter
Frost protection
Comm. fault
Significance
*Filter not replaced within 14
days.
*Frost protection fault.
*External alarm activated.
*The filters need to be
changed.
*The temperature of the wa-
terborne re-heater is too low.
*Communication fault
between the PCB (AA2) and
the display (AA4).
NIBE GV-HR 130
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