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After replacing the two PCB’s, the stop/start buzzing is now evidently coming from the Grundfos water pump. Our heating and hot water is working fine as it should, but the buzzing/noise is VERY irritating (especially at night). Firstly, can this repair wait until lockdown is over or should...

Hi all, Our BoilerMate III started buzzing on/off yesterday. we still have hot water and the heating works but the buzzing is doing two things: - Driving us insane! - Is it safe to leave it on despite the I replaced the pump speed control PCB today as that’s where the buzzing sounds like...