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Buderus Logamatic 4323 Service Instructions

Buderus Logamatic 4323
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Fault
20
Logamatic 4323 - Subject to technical modifications.
107
Unknown
module x
Module switches all outputs off
and corresponding fault LED on.
This is a newer module type which
is not recognised by the older
control software.
Checking the control unit version in
the MEC2 (Æ Chapter 22).
If necessary, replace the CM431
and MEC.
Module or control unit is faulty. If necessary, replace module or
control unit.
Inert anode
No effects on control
characteristics.
Inert anode incorrectly connected
or faulty.
Check the inert electrode and
replace if necessary.
Module is faulty. Replace module.
External
Fault input
– External components incorrectly
connected or faulty.
Check connection and function of
external components (cylinder
primary and DHW circulation
pumps).
Module is faulty. If necessary, replace the module.
Insuff. supply
Pump logic will be cancelled. Boiler sensor incorrectly
positioned. Sensor must always be
installed in the heat source.
Fit boiler sensor in the heat source
or buffer cylinder.
System may be insufficiently
supplied
Heat supply insufficient or non-
existant.
Recharge a wood burning boiler,
for example.
Flow sensor
FZB
Pump logic will be cancelled. Sensor is faulty or not connected. – Check sensor connection.
If necessary, replace the sensor.
Sensor should not be required, but
is needed because control unit has
been incorrectly set up.
Check control unit address: Sensor
is required for address 0 or 1 at the
CM431.
With a CAN address <1, a boiler
system is regulated by this control
unit, then parameter Minimum
heat-up temp (Æ Chapter 13.1) is
set to "off".
Sensor will only be required for
control unit addresses higher than
1 if boiler rise (Æ Chapter 11.22)
higher than 0 has been entered.
Module or control unit faulty. If necessary, replace module or
control unit.
Manual mode
XX
Control unit operates in manual
mode.
A function module switch may not
have been set to "AUT".
Set the corresponding function
module switch to "AUT".
Maintenance
Date
No influence on control
characteristics.
The specified period before the
next service has expired.
Perform maintenance and then
reset maintenance message.
Fault Effect on control
characteristics
Possible causes of the fault Remedy
Tab. 4 Fault table

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Buderus Logamatic 4323 Specifications

General IconGeneral
BrandBuderus
ModelLogamatic 4323
CategoryControl Unit
LanguageEnglish

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