Saunier Duval Boiler Fault Codes

Your boiler is unable to safely light the flame needed to provide heating and hot water.

Your boiler is unable to safely light the flame needed to provide heating and hot water.

Your boiler has switched itself off because it has reached an unsafe temperature to protect the internal components from damage.

Your boiler has detected a problem with the sensor that monitors the temperature of the water heading to your radiators, causing the system to shut down for safety.

Your boiler has detected a problem with the sensor that monitors hot water temperature, which typically means you will have little or no hot water.