Troubleshooting - Buderus Logamatic 2107 Installation And Service Instructions Manual

20 Troubleshooting

Only one error is displayed at a time, so the following
table indicates the priority of each error.
Fault
Burner fault
BURNER ERROR
Boiler sensor error
BLR SENSOR ERROR
Outdoor sensor error
OA SENSOR ERROR
DHW sensor error
DHW SENSOR ERROR
Collector sensor error
SL SENSOR ERROR
Solar hot water sensor error
DHW-SL ERROR
Heating error
HEATING ERROR
DHW error
DHW PROD ERROR
Remote control 1 error
REMOTE1 ERROR
Remote control 2 error
REMOTE2 ERROR
Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.
Possible cause of the fault
Burner control
Sensor defective.
Connecting cable
interrupted
Sensor defective.
Connecting cable
interrupted
Sensor defective.
Connecting cable
interrupted
Sensor defective.
Connecting cable
interrupted
Solar module (FM 244)
defective
Sensor defective.
Connecting cable
interrupted
Solar module (FM 244)
defective
Boiler water thermostat set
too low.
Manual reset high limit (STB)
tripped
No fuel
Sensor not arranged correctly
Sensor not mounted correctly
Filling pump is connected
incorrectly or defective.
Remote control has wrong
address
Incorrect wiring
Remote control is defective
Connecting cable
interrupted
Remote control has wrong
address
Incorrect wiring
Remote control is defective
Connecting cable
interrupted
Effects on control
characteristics
Boiler not working
Central heating stays cold
The boiler is enabled with
maximum output (emergency
mode via thermostat is
possible).
The minimum outdoor
temperature is expected
(outdoor temp.: 14°F (-10°C))
DHW tank no longer being
topped up
Solar pump is switched off
Solar pump is switched off
Solar pump is switched off
No boiler protection
Boiler stays cold
Constant attempts are made
to top up the DHW, but with a
reduced boiler supply setpoint
temperature.
There is no current room
temperature measurement,
so the ambient influence,
switch-on and switch-off
optimization and automatic
adaptation do not apply.
There is no current room
temperature measurement
available, so the ambient
influence does not apply
Troubleshooting 20
Remedy
Eliminate the burner fault as
described in the boiler or
burner documentation.
Check the sensor
connection.
Replace the sensor
Check the sensor
connection.
Replace the sensor
Check the sensor
connection.
Replace the sensor
Check the sensor
connection.
Replace the sensor
Replace the module
Check the sensor
connection.
Replace the sensor
Replace the module
Set boiler water thermostat to
"AUT"
Manual reset high limit (STB)
Check the fuel
Check the sensor position
Check sensor and pump
Manual mode
Check the address
Check the wiring
Replace the remote control
Check the address
Check the wiring
Replace the remote control
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