Our boiler is a Potterton Suprima 50L. It's developed a problem with recurring "lockout" where we need to press the reset button. It clearly shouldn't do this so just wondering if anyone has any ideas about what might cause this? Someone suggested it could be caused by string winds blowing down the external ventilation tube?
It could be one or a mixture of many problems, wind blowing down the flue is only a guess and very unlikely. The best bet if you want it sorted quickly is to get a Gas Safe Registered engineer to take a look.
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