Buderus Logamatic EMS User Manual

Troubleshooting
Logamatic EMS RC35 user interface - Subject to technical modifications.50
10
A01 811 Thermal
disinfec-
tion was
unsuccess-
ful.
Thermal disinfection has
been interrupted.
Water draw too great
during the
disinfection period.
B Select a time for
thermal disinfection
when there is no
other demand heat.
Boiler output is too
low for heat to be
used for other
purposes at the same
time (e.g. 2nd heating
zone).
Sensor incorrectly
connected or
installed.
Breakage or short
circuit in the sensor
lead.
Temperature sensor
is defective.
B Check the sensor
connection and the
sensor lead.
B Check that the
sensor is correctly
mounted.
B Compare resistance
values with the
characteristic
sensor curve.
DHW pump is faulty. B Check that the
DHW pump is
working, e.g. by
carrying out a
function test.
A01 816 No
communi-
cation with
UBA3/
MC10/
MCM10
The boiler no longer
receives heat demand
signals; the heating
system no longer provides
heat.
EMS bus system is
overloaded.
B Reset by switching
the heating system
on and off.
B Notify customer
support if needed.
UBA3/MC10/
MCM10 is defective.
A01 828 Water
pressure
sensor
defective.
Digital water pressure
sensor is defective.
B Replace the water
pressure sensor.
A02 816 No
communi-
cation with
BC10
BC10 settings are no
longer accepted by RCxx
devices.
Contact problem on
BC10, or BC10
faulty.
B Check BC10
connection.
B Replace BC10 if
necessary.
SC FC
Fault
message
Effect on control
characteristics Possible cause Remedy
Tab. 21 Fault table

Buderus Logamatic EMS Specifications

General

Brand	Buderus
Model	Logamatic EMS
Category	Network Router
Language	English