Dantherm RCC 130 Bedienungsanleitung Seite 57

INSTALLATION AND SERVICE MANUAL FOR PROFESSIONALS
Maintenance and troubleshooting: Troubleshooting
A B C Error Fault
code
3 R 0 E3 Bypass damper does
not close as expec-
ted
Bypass damper
Reduced heat recov-
ery due to low ex-
tract airflow
Bypass is closed, but
supply air temperat-
ure is lower than ex-
pected
Airflows are not bal-
anced. There is much
more extract air than
supply air
4 R 1 E4 Extract air temperat-
ure sensor (T1)
Control board meas-
ures that temperat-
ure sensor is open or
short-circuited
Potential cause Action required
Switch position A: by- Check whether bypass is
pass is closed, but sup- activated in PC Tool
ply air temperature is
Check if bypass is
lower than expected
blocked
Switch position B: by-
Check mechanical con-
pass is closed, but ex-
nection between bypass
haust air temperature is
actuator and bypass
higher than expected
valve
Check electrical connec-
tion between control unit
and bypass
Check control unit output
Extract air filter soiled Changing the filter
Poor adjustment of the Adjust the system
airflows
A bathroom extract air Remove the extract air
fan creates a negative fan from the bathroom
pressure in the dwelling and connect the extract
air from the bathroom to
the ventilation system in-
stead
A kitchen extract air fan Provide heated fresh air
is creating negative for the extraction hood. If
pressure inside the this cannot be achieved,
dwelling open a window/door
while the extraction hood
is running
A stove fan creates neg- Contact the fireplace/
ative pressure inside the stove supplier to take
dwelling safety precautions
Supply air filter is soiled Changing the filter
Poor adjustment of the Adjust the system
airflows
Temperature sensors Mount temperature
are not mounted cor- sensor(s) correctly
rectly
Resistance in one of the Replace temperature
temperature sensors is sensor
too low or too high
Resistance in temperat- Replace control board
ure sensor is OK
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 seconds
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