Vaillant eco tec 837

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Grampy Weatherwax

Joined
28 Oct 2022
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Hi
Sorry posted this in the wrong forum
I have the above boiler, yesterday it wouldn't fire up, error code either F28 or F29.
Today I've replaced the igniter and now have a good spark, but no ignition. Water pressure is 3/4 way up the gauge, Gas on the hob and gas fire is normal. Any ideas please.
 
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Are you gas safe registered or ex engineer? If so you’re best asking in the combustion chamber part of the site.
 
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