On Tue, 11 Feb 2020 17:14:02 +0000, Gav wrote:

Home owners clud so I'm probably wasting my time...

Hi my outside oil boiler is sooting up and locking out in bad weather,
could this be because wind blowing around flue. had a service about
month ago. I can get it going when I clean photocell but have to do this
every other day.

Did it lock out in bad weather before the service?

Your should be able to peer through a small hole and see the flame,
it should be mainly blue.

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Cheers
Dave.