Emergency
F.27 on Vaillant ecoTEC Plus 610

Your boiler has detected an issue with its flame monitoring system and has automatically shut down to ensure your safety.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Act immediately

Turn off your boiler and stop using gas appliances. Call a Gas Safe engineer now. This fault can be dangerous if ignored.

Technical description

Safetyswitch-off:Faultinflamedetection | Moistureontheelectronics,electronics(flamemonitor)defective,gassolenoidvalveleaking

Engineer required

This is a emergency severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Related fault codes

F.28View →F.29View →

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