Dantherm RCV320 P1 Benutzerhandbuch Seite 54

A B C Error
code
11 R 0 E11
12 R 2 E12
54
Fault Potential cause
Supply air temperat- Low temperatures
ure < +5 °C from unheated rooms
Reduced heat recov-
ery due to low ex-
tract air temperature
Poorly insulated ducts
in cold environments
Reduced heat recov- Extract air filter soiled Changing the filter
ery due to low ex-
Poor adjustment of
tract airflow
the airflows
A bathroom extract
air fan creates a neg-
ative pressure in the
dwelling
A kitchen extract air
fan is creating negat-
ive pressure inside the
dwelling
A stove fan creates
negative pressure in-
side the dwelling
Overheating Overtemperature
caused by fire inside
One of the internal
or outside the ventila-
sensors measures a
tion unit
temperature
Overtemperature due
of > 70 °C.
to combination with a
preheater or post-
heater and insuffi-
cient airflow
INSTALLATION AND SERVICE MANUAL FOR PROFESSIONALS
Maintenance and troubleshooting: Troubleshooting
Action required
Ensure that all ventilated
rooms are heated
Alternatively, close the air
vents to rooms that are
not heated
Improve the insulation of
ducts
Adjust the system
Remove the extract air
fan from the bathroom
and connect the extract
air from the bathroom to
the ventilation system in-
stead
Provide heated fresh air
for the extraction hood. If
this cannot be achieved,
open a window/door
while the extraction hood
is running
Contact the fireplace/
stove supplier to take
safety precautions
Check ventilation unit
and surroundings for fire
Check ventilation unit
and surroundings for fire
Check which sensor is
measuring a high tem-
perature. Check whether
the airflow is blocked and
the filters are soiled.
If necessary, increase the
setting for the minimum
airflow
Reset
Manual reset by
pressing the alarm
button on the
membrane key-
board operating
panel or by switch-
ing the unit off/on
Firmware ver-
sion 2.9 and higher
also offer automatic
restart after
10 minutes
The alarm display
can be reset by
pressing the alarm
button or by
switching the unit
off/on. However,
the unit cannot be
started until the
causes of the alarm
have been elimin-
ated