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Burner operational
Heating demand
DHW demand
Flue gas test active
Maintenance is due / fault is present
Table 21 Explanation of the symbols for footnote 1), page 48
7.3 Error message
With the error message menu you can display the most recent fault from the error memory, e.g in
order to investigate a fault.
It is differentiated between faults of these categories:
• Current errors are all open faults which are currently present in the system. These can be one
of the following types: locking, blocking or plant error.
• Locking errors
For this, press Reset on the boiler.
• Blocking errors
soon as the error status is lifted.
• System errors in the heating system are recorded in the RC35 programming unit, with the
exception of faults in the boiler or burner, which are either "locking" or "blocking" faults. The
heating system keeps operating as much as possible during the fault; a reset is not required.
A list of the locking and blocking faults can be found in the associated installation and
maintenance instructions, depending on the particular boiler.
B Turn the rotary selector
1) Not possible with boilers with UBA1.x, DBA or UBA-H3.
Logamatic EMS – 6 720 801 387 (2011/05)
1)
When the fault is eliminated, the heating system must be manually unlocked.
1)
: with blocking faults the heating system continues to work automatically as
to display the next message.
Diagnosis
7
49
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