Medium
D.68 on Vaillant Atmomax

Your boiler is struggling to light the flame on its first try, which often means it is having trouble with its fuel supply or the spark.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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.

What the manual says

Manufacturer manual

Unsuccessful ignitions in the first attempt

Shared across the range
This code is shared by the boilers in this range, which use the same control board. It may not be printed in this exact variant’s manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

DIY fix possible

Check that your gas emergency control valve is fully openCheck if other gas appliances in your home, like a hob, are working correctlyIf you have a pre-payment meter, check that you have sufficient credit

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F.28View →F.29View →D.69View →

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