Buderus GB142-24 User Instructions page 20

Operating and error messages
Display (example) Meaning
1
140
2
P21
2
-H
1
Standard display for this operating condition. This display appears after 5 minutes if no button is pushed.
2
Other values may be displayed depending on the operating condition. You can return to the starting point by repea-
tedly pushing the "Service" button.
20
Current boiler water temperature (in °F)
Current system pressure (in psi)
Operating message (see table 5):
Current condition of heating system
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