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Actually unistore had an issue just before central was serviced last year, engineer checked it and replaced the expansion tank. He checked the system, never mentioned the missing valve. So was he negligent ?, should he be reported to corgi. But at this time, its not the issue.

As I said previously, system installed by qualified engineer, 14 years ago. System has been serviced by various registered engineers over the years and 3 port valve replaced by engineer 5 years ago, Not the issue today. System hopefully being replaced in a few months.Thanks

Just checked the voltage on the 3 port connections at the vr65, when the vrt360 isn't set for heating or hot water, both the hot water on and off are reading 240, heating live is 240, but boiler not active. If I switch the power off to central heating completely and back on, the boiler comes on...

No, central heating engineer never fitted one at the time of installation to the hot water, 3 port valve fitted at the time.

The original heating engineer fitted a 3 port at the time of installation, been replaced with same type about 5 years ago.

Not keen about replacing the vrt65, but I see it's not available now. I presume the vrt 66 is a replacement with 2 heating zones than the 1 with the vrt 65. I would probably have to replace the vrt360, as it doesn't look its compatible with the newer vr 66, any advice would be great.

No new pcb, infact nothing replaced for at least 5 years

Tried taping the relays, unfortunately still the same. I did suspect the vrt 65, but reluctant to replace it as I had thought of a complete new system later in the year. This system is 14 years old

I will give it ago, other thing I noticed, Even now when I switch on thevrt 65 to off, boiler is still has the radiator demand on boiler display.

It has only done it over the last few weeks. Previously had an issue about 5 years ago, put a new 3 way valve,fixed the issue.

My system is valiant ectoc plus 428 unistor 310 vr 65 vrt 360 f I have tried to get a Central heating engineer out, unfortunately, none able to come for weeks. The issue is, the boiler shows that radiators are calling for heat even when the thermostat isn't. Changed the 3 way valve, same make...

Company is he hetas registered. I do appreciate the help, but it shows the various opinionsizes out there.

Stainless steel flexible liner, heat is in the middle of the the wall, Width of the hotest area is about a foot wide and goes is hot for about 2 feet. Burning seasoned wood.

Which is waffle ?

Thanks for info

Hi Hope some one can give me advice. I had a inset multifuel fire fitted abut 18 months ago. Since it was fitted I notice the wall above gets very hot. I have measured the temp and gets to 90 C up to 2 feet above the Opening. The company fitted a flexible stainless 6 inch flue. I have contacted...

I am getting my kitchen floor tiled, I am putting down 12mm plywood to level it, i have noticed the plywood that came is marked EN 636-2, is that alright to use under the tile ?, i have checked online, it states moisture resistant. any help would great.

Hi Thanks for your help, will let my installer now.

It did come with a element, but engineer said it was disconected and since it has vr 65 vrt 360 f, this would be removed and put system back to controlling hot water with a hot water stat.

My system is valiant ecotec plus 428, unistor 310, vr 65 vrt 360 f grundfos 15/60 pump. Recently due to my boiler breaking down I was left with no hot water. I was asking central heating engineers if it was possible to have an electric element fitted as a back up. Some say yes others no. I...