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Troubleshooting
11
Logamatic 4121, 4122 and 4126 - Subject to technical modifications.
78
11 Troubleshooting
Have your heating contractor remedy any faults
immediately.
All system faults are displayed on the MEC2
programming unit.
Report the fault by telephone to your heating contractor.
Where necessary, set the module switches according to
the instructions in (Æ
Chapter 12).
Provided your control unit is equipped with the above
modules, the following faults may be reported:
DHW
Inert anode
DHW
Ext. fault input
Heating circuit x
In manual mode
DHW
In manual mode
DHW
Primary pump in manual mode
DHW
Secondary pump in manual
mode
DHW
HE sensor
DHW
Sensor OFF
DHW
Sensor ON
Boiler (x)
No connection
Low loss header
Flow sensor
Boiler x
Three-way valve
Solar
Cylinder X in manual mode
Boiler
Outside temperature sensor
Heating circuit x
Flow sensor
DHW
DHW sensor
DHW
stays cold
DHW
Therm. disinfect
DHW
EMS
DHW
DHW warning
Heating circuit x
Remote control
Heating circuit x
Communication
Heating circuit x
Heating circuit X in manual
mode
Boiler x
Status y burner
Heating circuit x
Fault mess. pump
BUS system
ECO BUS has no reception
BUS system
No master
BUS system
Address conflict
Address
Conflict slot 1
Address
Conflict slot 2
Address
Conflict slot A
Address
Incorrect module slot 1
Address
Incorrect module slot 2
Address
Incorrect module slot A
Address
Unknown module slot 1
Address
Unknown module slot 2
Address
Unknown module slot A
78


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