Marked with a tap icon; adjusts the Domestic Hot Water temperature for showers and sinks.
Flue Gas Pressure Switch. This indicates an issue with the fan or a blockage in the chimney flue.
Set between 50°C and 75°C depending on how cold it is outside. Lambert Lx 24 Fi Manual English
Low Water Pressure. The system pressure has dropped too low. Refill using the filling loop as described above.
Never attempt to open the sealed combustion chamber or adjust gas valves yourself. If you smell gas, turn off the main gas supply valve and contact emergency services immediately. Marked with a tap icon; adjusts the Domestic
Flame Sensing Error. The boiler detects a flame even when it shouldn't be there; this usually requires a technician. Maintenance and Safety
Shows current water temperature, system pressure (in bar), and error codes. Set between 50°C and 75°C depending on how
Understanding the base capabilities of your boiler helps in identifying if the system is performing correctly. Approximately 24 kW (82,000 BTU/hr).
The Lx 24 Fi model is a "room sealed" (Fi) fan-assisted boiler, meaning it draws combustion air from outside and exhausts gases through a coaxial chimney system, making it safe for modern indoor installation. Key Technical Specifications