Buderus Logamax plus - Page 78

Display information13
Logamax plus GB162-80 kW/100 kW - Subject to modifications resulting from technical improvements!78
[8/8/8|
Start-up phase:
The boiler starts up after activation of the mains power supply or comple-
tion of a system reset. This code is displayed for a maximum of
4 minutes.
[9/a/\| [2/3/5|
Blocking fault:
The UBA 3 or the KIM is defective.
No heating operation and no DHW.
[9/h/\| [2/3/7|
Blocking fault:
The UBA 3 or the KIM is defective.
No heating operation and no DHW.
[9/h/\| [2/6/7|
Blocking fault:
The UBA 3 or the KIM is defective.
No heating operation and no DHW.
[9/h/\| [2/7/2|
Blocking fault:
The UBA 3 or the KIM is defective.
No heating operation and no DHW.
[9/l/\| [2/3/4|
Blocking fault:
The contacts for the gas valve have been broken.
No heating operation and no DHW.
[9/l/\| [2/3/8|
Blocking fault:
The UBA 3 or the KIM is defective.
[9/p/\| [2/3/9|
Blocking fault:
The UBA 3 or the KIM is defective.
No heating operation and no DHW.
[9/u/\| [2/3/3|
Blocking fault:
The UBA 3 or the KIM is defective.
No heating operation and no DHW.
[a/0/1| [8/0/0|
Locking fault:
The contacts to the outdoor-temperature sensor have shorted or are
interrupted, the sensor has been connected incorrectly or is defective.
Minimum outdoor temperature is as-
sumed.
[a/0/1| [8/0/8|
Locking fault:
The contacts to the DHW temperature sensor have shorted or are inter-
rupted, the sensor has been connected incorrectly or is defective.
No DHW is heated any more.
[a/0/1| [8/0/9|
Locking fault:
The contacts to DHW temperature sensor 2 have shorted or are inter-
rupted, the sensor has been connected incorrectly or is defective.
No DHW is heated any more.
[a/0/1| [8/1/0|
Locking fault:
The boiler water does not warm up. Sensor lead broken or shorted, sen-
sor connected incorrectly or defective, filling pump connected incorrectly
or defective, permanent tapping or leak.
No DHW available, but there is heating
operation. The DHW priority is can-
celled when the fault message appears.
Switch the boiler off and on to reset the
boiler.
[a/0/1| [8/1/1|
Locking fault:
Thermal disinfection has failed. Outlet flow during disinfection period too
high, sensor lead broken or shorted, sensor connected incorrectly or
defective, filling pump defective.
Thermal disinfection was interrupted.
[a/0/1| [8/1/6|
Locking fault:
No connection to EMS. EMS bus system is overloaded, UBA 3/MC10 is
defective.
The boiler no longer receives a heat de-
mand. The heating system does not
heat any longer.
Display codes
Main
display
code
Sub-
display
code
Key to display code
Other effects
Table 19 BC10 Display codes
1) Only visible on the Service Tool or a specific RC controller.