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Brian, Plumber
Category: UK Plumbing
Satisfied Customers: 840
Experience:  16 yrs. experience as plumber, including full bathroom and kitchen installations.
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I have glow worm 80 ff boiler. The manual suggests there is

Customer Question

I have glow worm 80 ff boiler . The manual suggests there is a problem with the lighting sequence fan/apps. Can you explain in more detail what this means please .
Submitted: 8 months ago.
Category: UK Plumbing
Expert:  Brian replied 8 months ago.

Hi The fan needs to run which operates a pressure switch which then allows the gas valve to open etc etc
If your fan is running then check the case seals for damage then the pressure switch for continuity when pressurised you can do this
by blowing down the tube.
Its usually the fan or pressure switch so try them first

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