I went and fiddled around with therm and tuned it down loads and later up high and it has come on but it has been twodays of being sporadic on and off so I do think I need something fixed...
Could be a diverter valve issue, if it's an ecotec plus and was fitted by a Vaillant registered installer it'll still be under warranty (if it's less than two years old it'll be under warranty anyway), so call Vaillant out to it
Could be a diverter valve issue, if it's an ecotec plus and was fitted by a Vaillant registered installer it'll still be under warranty (if it's less than two years old it'll be under warranty anyway), so call Vaillant out to it
If it was fitted by a Vaillant registered installer you wouldn't have had to, as they do that for you via the Internet. Was it fitted by a Vaillant registered installer?
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