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tomo
Keston Celsius 25. The gas rate is over 10.5% less then manufacture instruction. MI says + or - 5%. Burner pressure is more than 1mbar over MI. Manufacture says that the burner pressure is manufacture preset, so should I try to reset it and how to do that, the instruction does not show how to set burner pressure. The combustion was good and all boiler working fine. I haven't got experience with this boilers and I am new in the industry. Please give some ideas.