Buderus Logamax plus Installation Instructions Manual page 80

13 Display information
Main Sub-
display display
code code
Blocking fault:
[c/0/\| [2/8/8|
The contacts for the pressure sensor have been interrupted or have
shorted.
Blocking fault:
[c/0/\| [2/8/9|
The contacts for the pressure sensor have shorted.
Blocking fault:
[c/u/\| [2/4/0|
The contacts for the return temperature sensor have shorted.
Blocking fault:
[c/y/\| [2/4/1|
The contacts for the return temperature sensor have been interrupted.
Locking fault:
[e/l/\| [2/9/0|
The UBA 3 or the KIM is defective.
[e/\/\| [2/4/2|
Any display code starting with the letter E (except EL).
Blocking fault:
thru
[2/8/7|
The UBA 3 or the KIM is defective.
Operating phase:
[h/\/7|
The system pressure is too low (less than 12 psi [0.8 bar]).
Operating phase:
[h/\/7|
The system pressure is too low (less than 12 psi [0.8 bar]).
Operating phase:
[p/-.-|
The system pressure is too high (higher than 58 psi [4.0 bar]).
Locking fault:
[\/r/e|
Reset is carried out. This code appears after the "Reset" button on the
display was pressed for 5 seconds.
Table 19 BC10 Display codes
1) Only visible on the Service Tool or a specific RC controller.
80 Logamax plus GB162-80 kW/100 kW - Subject to modifications resulting from technical improvements!
Display codes
Key to display code
Other effects
No heating operation and no DHW.
No heating operation and no DHW.
No heating operation and no DHW.
No heating operation and no DHW.
No heating operation and no DHW.
No heating operation and no DHW.
Possibly no heating operation or no
DHW available.
Possibly no heating operation or no
DHW available.