Medium
d.68 on Vaillant ecoFIT Pure 835

Your boiler is struggling to light the flame on its first try, which can lead to it failing to provide heating or hot water if it continues.

Book a service

This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

Technical description

Number of unsuccessful ignitions at 1st attempt

DIY fix possible

Ensure your gas supply is turned on at the meterCheck if other gas appliances in your home are working correctlyPress and hold the reset button for five seconds to see if the boiler clears the code

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