Buderus Logamatic EMS User Manual

Logamatic EMS RC35 user interface - Subject to technical modifications. 49
Troubleshooting
10
A01 808 DHW
sensor 1
defective.
Heating of domestic hot
water is stopped.
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.
A01 809 DHW
sensor 2
defective.
A01 810 DHW stays
cold.
The system continuously
attempts to heat the
DHW tank to the set
target temperature for
DHW.
DHW priority is switched
off once this fault
message appears.
Constant drawing or
system leak.
B Fix any leaks
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
incorrectly connected
or defective.
B Check that the
DHW pump is
working, e.g. by
carrying out a
function test.
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