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User Manual
Singular Combi Boiler - BTC 439003302 A (2021/03)
3.4.1 H0 mode
This is the mode for checking the previous error.
H0 and the previous error (example: A6) will be displayed repeatedly on
the screen.
Figure 10
3.4.2 H1 mode
This is the mode for checking the most recent error.
H1 and the most recent error (Example : A2) will be displayed repeatedly
on the screen.
Figure 11
3.4.3 H2 mode
This is the mode for checking the current error.
H2 and the current error (Example : A3) will be displayed repeatedly on
the screen.
Figure 12
3.4.4 H3 mode
This is the mode for checking the current pressure in the system.
H3 and the current pressure in the boiler (Example : 25) will be displayed
repeatedly on the screen.
The pressure unit is PSI.
Figure 13