Hello. I worked on an oil boiler that when the outside door is closed the burner goes to lockout. When it is opened slightly it works perfectly. Has been working fine in same situation for 20 years. I replaced the gasket at the burner and replaced the fire board on heat exchanger access door and still no fix. Has anyone any ideas?
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- Thread starter Boilerman35
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I got it sorted all the flue was leaking where i could not access it or see it thanks for reply. Iam working a warmflow utility 90 and i need both door seals for main and secondary heat exchangers. Cant seem to get the main heat exchager seal any ideas?
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