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    Vaillant EcoTEC Pro Always Heating Heating

    Thanks Picasso, I'm thinking on the same lines as you, so when I left this morning at 7:30 comfort was off and heat set to 15C. I'm looking at the Nest app now on my phone and heat is still set to 15C and says not heating, but house temp is 19C..no its not sunny, its Manchester! so the boiler...
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    Vaillant EcoTEC Pro Always Heating Heating

    Hi, I have a 2yr old EcoTEC Pro 28, just out of warranty. Two weeks ago it started making an intermittent buzzing noise from inside the boiler, quite loud can be heard upstairs and recorded it on a phone, sounded like a motor or valve struggling to open/run. On the first occasion I turned the...
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