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Vaillant will not start until I've reset. ?

Turbomax VUW282/1E.

The boiler works perfectly until the end of the day when the timer switches it off. Next morning it will not fire up until I have reset. The 'Ignition indicator' flashes. When reset, it fires up perfectly.

Anyone have any ideas on this?

Thank you
skyblue, January 2011
it's the ignition indicator, the hour-glass shape. Yes I still have the problem, but today from another search someone with exactly the ssame problem suggests it's the diff press switch which he found was dirty and causing the problem.

Thanks for your interest

adrian, May 2011
Need to distinguish before answering ''Ignition indicator' flash

Is it the two triangle shaped light OR the flame light that is flashing? These lead to two completely different avenues of potential problems

Carefree, January 2011
link Click here to see other fixes for Vaillant.