Flue Gas Pressure Switch. This indicates an issue with the fan or a blockage in the chimney flue.
Cycles through Summer Mode (DHW only), Winter Mode (Heating + DHW), and Off/Reset .
A switch to toggle between Summer (Hot Water only), Winter (Heating + Hot Water), and Off/Reset. Operating Instructions
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Regular maintenance is essential to ensure the optimal performance and longevity of your Lambert Lx 24 Fi. Here are some recommended tasks: Lambert Lx 24 Fi Manual English
) and serves as the system reset when turned to the 'R' position. Operating Instructions for Users System Startup Open the gas cock valve located under the boiler.
The front interface features a clear paired with manual regulating knobs and physical buttons. The English user layout designates the following functional steps for basic operation:
Airflow obstruction or fan malfunction. Inspect the exhaust terminal outside. Central Heating NTC Sensor Fault
| Interval | Action | |----------|--------| | | Check pressure gauge (1.0–1.8 bar cold). Symptom check: unusual noises, flames visible, error codes. | | Every 6 months | Visually inspect flue terminal outside for blockages. Check for water leaks around the boiler. | | Annually | Must be serviced by a Gas Safe engineer. Includes: cleaning the main heat exchanger, checking combustion parameters, testing condensate trap and siphon, checking ignition and flame sensing electrodes. | | Every 2 years | Replace the internal condensate siphon seal (preventive against flue gas leakage). | Flue Gas Pressure Switch
To keep the appliance running efficiently and safely, a certified engineer must perform the following checks annually: Inspect the flue terminal for blockages or leakage. Clean the primary heat exchanger and burner surface. Check the pre-charge pressure of the expansion vessel ( Verify the operation of the safety valve ( ) and the ionisation flame electrode. Safety Devices
Sealed chamber boilers draw air from outside, but the installation room must still comply with national ventilation regulations.
Maintain a minimum clearance of 50 mm on each side and 300 mm at the bottom for servicing. Hydraulic Connections
Your Lambert Lx 24 Fi features a digital display with intuitive icons. The manual’s English section details the following controls: A switch to toggle between Summer (Hot Water
The Lambert LX 24 Fi is a conventional (non-condensing) combi boiler. Understanding its key specifications is the first step to using and maintaining it effectively.
To keep the system running efficiently, the water pressure inside the heating loop must be monitored via the analog pressure gauge located on the lower part of the boiler interface.
The Lambert Lx 24 Fi comes with a comprehensive warranty that covers parts and labor for a specified period.
: This code indicates that the boiler's internal safety system has activated. It could be due to an overheating A03 code (where the safety thermostat has tripped) or an E03/A03 air pressure fault related to the fan or flue. Check that all radiator valves are fully open, as closed valves can prevent proper water circulation. If an E03 code appears, resetting the boiler may resolve the issue. If it persists, it indicates a problem with the fan, pressure switch, or flue system, which will require professional attention.