The Lambert Lx 24 Fi is a wall-hung, forced-draught condensing boiler designed for central heating and domestic hot water (DHW) production. The “24” refers to its nominal heat output in kilowatts (approximately 24 kW), making it suitable for apartments or small to medium-sized homes. The “Fi” designation indicates a fully integrated sealed combustion chamber and fan-assisted flue system.
If the boiler displays a lockout symbol (red LED steady), pressing Reset once may clear it. If the code returns within 24 hours, professional assistance is required. Lambert Lx 24 Fi Manual English
The Lx 24 Fi is a combi boiler, not a storage heater. It heats water on demand. If delay exceeds 30 seconds, check pre-heat mode (if available) or consider a secondary circulation system. The Lambert Lx 24 Fi is a wall-hung,