Buderus GB142-24 User Instructions page 21

Display
Normal operation
=/-
-H
=H
Normal operation
0
0A
0C
0E
0H
0L
0U
0Y
Table 5 Messages in normal operation mode
1
Push the "Service" button to display this operation message.
2
Is shown automatically, i. e. without you pushing a button.
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Meaning
1
Boiler in space heating mode
Boiler in DHW heating mode
1
Burner interval circuit, burner will restart automatically after 10 minutes
Burner is started
More capacity was delivered than required
Ready for operation
The gas valve is open
Initializing, Pre Purge
Flow temperature higher than set
Operating and error messages
21