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I have a Vaillant EcoTec 831 (2013 so '2nd generation). I see online that this model has a bad reputation for PCBs, and mine had to be replaced. As it was out of warranty, I found a local plumbing engineering to do this. I don't know where he bought the replacement - and since issues, I've...

I looked online before I bought the Chinese "iolloi Wifi Smart thermostat 5+2 days" and found that someone had got it to work with my exact type of combi (Vaillant 831 Ecotec). So although the online iolloi instructions aren't exactly the same terminology & diagrams as my ancient Honeywell...

Photos enclosed - appears that 2 circuits tripped a few times, including over night when very little electricity would be used (only Fridge Freezer - note the "dining room" circuit is the kitchen). I don't understand what the yellow "R&D main site" is - I thought the red switches on the far...

Unusual situation, would appreciate advise please. When we moved our survey highlighted that a chimney had been removed from the kitchen. It was along the back wall of the main building - the kitchen & upstairs then continue 'outrigger', ie L-shaped house with a rear gable end. Upstairs there...

My extension is 3 years old and for a while was all fine. But after a year or so I noticed some damp low-down along the longest wall. The damp-course was clearly working, as damp did not raise above DPC. Regrettable but a building inspector was short of ideas so I left it. Our ground gets...

Clue in the title - I'd like to get rid as I have no use for it and the garden would be a little better without it. But I can think of a few implications and I'd like to think this through to be prepared. Repair is an option and probably could be done for <£500. Here goes: 1) How much for...

So regular double-glazed bay bedroom window. Certainly over 10 years old. It's leaking. Even allowing for condensation, we get a lot of water on the bottom sill. Any tricks to identify the source would be gratefully received so I can decide what to do. Clearly it could be between wall &...

I see from past posts that damp is, as expected, quite a significant subject ... I have damp in my bedroom wall/ceiling corner. This is a north-facing room with a standard pitched roof above. 1920s build. Difficult to look for damp in the attic as this is right in the corner of the pitched...

What would cause individual lights in a multi-light fitting to cease working ?? Obviously I don't mean Bulbs blowing - replacing bulbs demonsrates the individual fitting has broken, yet other lights in the same unit work. Now happened with different light fittings - so I don't think I just...

I've paid the extra 'insurance' and had a Worcester engineer visit yesterday but would still value opinions on my problem as I'm surprised .... Problem is pressure is dropping on my Worcester Greenstar Jnr 28. It happens much more when Hot than cold irrespective of which Rads are open/closed...

(Worcester Greenstar Jnr 28, 2.5 years old. Bizarely the PRV pipe (far right) came away yesterday but NO water has come from of there) Why would my system loose pressure when the CH ring is Hot, but not when it is cold ?? (I realise Hot shows lower pressure level than Cold). I've tried...

My Worcester Greenstar Junior 28i kept loosing pressure. With no visible leaks, I started to get under the floorboards. I was then amazed when the pipe on the far right (the 7th one) came away in my hands !! The other end is under the floor. That's the Pressure Relief Drain Pipe (p31 of...

I'm finishing my plans for a loft conversion. The back of the house is SOUTH facing and will have a dorma extension. I'm now considering whether to have Velux windows on the NORTH (front) side too and would welcome people's opinions about the following : 1) they should increase...

Hello world .... An architect has drawn up plans for my loft conversion. I now have 2 choices : 1) lower the ceiling of the 1st floor so that the loft is a good height - we'd gain at least 5 inches so it would be 6'5. 2) not lower the ceiling and have a loft exactly (within 5...

Can I check my understanding of something, and perhaps make a suggestion too ? The "remove a radiator" article is quite clear, but I believe when it comes to putting the radiator back (or indeed adding a new one), things are different for open / sealed systems. For a sealed system, when...

How would I chose a Combi boiler (which I want to modernise and get rid of the loft tanks) for my EXISTING CH system ?? I have a 3 bed average semi house, the CH has 'micro' pipes, 8 Rads in all. I understand that the output from Combis is higher for DW than CH. So when they have numbers...

Fully pumped but not sealed ch system. Did have problem that scorching water from the bioler was only lukewarm when it reached the cylindar. Fixed that mainly by letting air out (air lock key in the pipe that continues past the input to cylindar). Now the water is scorching hot when it...

My boilder seems fine - two piping hot (geddit ;-) pipes coming out to supply the central heating and the hot water tank - up they go from the ground floor. But by the time the pipe gets to the cylinder, it's stone cold. Is this most likely trapped air ?? If so, is the only solution a...

My heating system is to pot .... usually downstairs is too cold. No plumber will come out and Balance the system - it's not worth their time. Quite happy to give it a go myself .... but where can I get Radiator thermometers ?? I cannot sense 20 degree difference I'm affraid ;-) Looked at...

You know the old advice of ... "when turning radiator valves of, for the summer, do not turn tight or it will be difficult to turn back on" and .... "count the number of turns to turn it off, so that you can use the same number when turning it on " .... which I suppose avoids the need to pay...