Dantherm RCV320 P1 Übersetzung Der Originalanleitung Seite 54

A B C Error
code
3 R 0 E3
4 R 1 E4
54
Fault Potential cause
Bypass damper does Switch position A:
not close as expected
bypass is closed, but
supply air temper-
ature is lower than
expected Switch
position B: bypass is
closed, but exhaust air
temperature is higher
than expected
Bypass damper Re- Extract air filter soiled
duced heat recovery
Poor adjustment of
due to low extract
the airflows
airflow
A bathroom extract air
fan creates a nega-
tive pressure in the
dwelling
A kitchen extract air
fan is creating nega-
tive pressure inside
the dwelling
A stove fan creates
negative pressure
inside the dwelling
Bypass is closed, but Supply air filter is
supply air temper- soiled
ature is lower than
Poor adjustment of
expected. Airflows are
the airflows
not balanced. There is
much more extract air
than supply air
Extract air tempera- Temperature sensors
ture sensor (T1) are not mounted
correctly
Control board meas-
ures that temperature
Resistance in one
sensor is open or
of the temperature
short-circuited
sensors is too low or
too high
Resistance in tempera-
ture sensor is OK
INSTALLATION AND SERVICE MANUAL FOR PROFESSIONALS
Maintenance and troubleshooting: Troubleshooting
Action required
Check whether bypass
is activated in PC Tool
Check if bypass is
blocked
Check mechanical
connection between
bypass actuator and
bypass valve
Check electrical con-
nection between con-
trol unit and bypass
Check control unit
output
Changing the filter
Adjust the system
Remove the extract air
fan from the bath-
room and connect the
extract air from the
bathroom to the venti-
lation system instead
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
Changing the filter
Adjust the system
Mount temperature
sensor(s) correctly
Replace temperature
sensor
Replace control board
Reset
Automatic reset
when efficiency is
high enough for 30
seconds
Automatic reset
when efficiency is
high enough for 30
seconds
Automatic reset if
the temperature is
within the normal
range for 30 sec-
onds