DISCLAIMER:
This video is only intended for use by qualified Gas Safe Registered engineers. You must not attempt any work on your boiler if you are not qualified. You must always carry out 26.9 checks upon completion of works on a boiler.

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This is the basic sequence of operation I learned about boilers.

I still follow this today as sometimes it's easy to overthink the situation and get bogged down by fault finding. Better to start simple and then work your way forward.

I hope it helps out some of you guys getting into breakdowns!

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