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Thanks , would love to ask his advice, bit can’t access his profile, how can I contact him please ? Thanks

No bypass.....is this picture enough ?

Just spoke to Rochester technical ( vaillant ) they have given me the reset to factory procedure, think this could be a good way to go. When the boiler was fitted, the installer, didn’t care that there wasn’t a permanent live for the boiler ‘ run on timer ‘ & as it was gurgling like hell & kept...

Agreed, my idea is not sound......will work on fixing the problem thanks for your help...

The Hot water circuit is very small. ( short ).....the boiler runs ok if the immersion cylinder is fairly cool, but if still reasonably hot, the boiler just can’t cope, fires up and immediately trips on high temperature, already I set Hot water only 3 times a day for an hour or so to avoid...

Hello I have an LP 722 programmer......unfortunately my heating system has a problem......the boiler doesn’t like it when heating hot water only..had great difficulty controlling the temperature, often cuts out iron over temperature, maybe it’s a piping configuration issue, I don't know. But my...

Can`t remember it was a standard CH flushing medium. Incidently the hot water is still returning to the makeup tank but at a much lower amount, it is just warm. This is with the return line elevated the extra 1 metre.

Yes I used a flushing agent and then after flushing this out replaced it with a corrosion inhibitor, my circulating water is very clear. Thanks

I don`t believe any pipework is blocked, I have flushed the whole system and refilled with protector chemical. It all drained down and refilled without problems. My concern is that when the house was built the airing cupboard was immediately below the makeup tanks ( domestic and CH) with the...

I believe mycentral heating was fine before I had my extension built, it is a fuly pumped system with ahot water cylinder etc. During the extension I have had several rooms added and the rads have about doubled, using same boiler ( potterton neataheat ) and pump. When the CH pump is on low...