Buderus Logamax GB142
4 fault codes documented
Display shows '04' — Flow temperature higher than set
This message indicates that the actual flow temperature within the heating system has exceeded the upper limit value you previously set. Although listed as a normal operation message, it may suggest the system is overshooting the target temperature.
Flashing Error Code on Display — General boiler fault
If a general fault occurs, an error code will flash on and off on the display of the BC10 basic controller. This indicates a problem that prevents the boiler from operating normally.
Alternating Display 'H 7 / Pxx' — Water pressure too low
The boiler display will show 'H 7' alternating with a 'P' value (e.g., P12), indicating that the water pressure in the heating system is too low. The system's water pressure should typically be between 3 and 12 psi.
Smell of Gas — Fire or explosion risk
If you detect the odor of gas near the boiler, it indicates a serious potential hazard. This situation could lead to fire, personal injury, or explosion. Propane gas is heavier than air and will settle near the floor.