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    Possible Danfoss FP715Si issue

    Hello, We have one year old Ideal Logic+ system boiler (not combi) which is controlled by a Danfoss FP715Si in combination with a wireless Siemens room thermostat. The Siemens is just set to 18/19 degrees and the Danfoss should keep the heating on while it is programmed to do so (e.g. 6pm...
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    Replastering inside of external wall

    I have recently hacked off about half a metre of plaster right back to the brick to try and see what was causing a damp patch which would not go away and all the paint had flaked off repeatedly. I filled in some gaps in the mortar on the outside of the house last year and can't see any...
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    Slate roof - repair or replace

    Hello all, Any slate experts here? I have an end of terrace victorian house from around 1850. I really don't know how old the roof slates are, one or two folks have suggested that it is the original roof. At the moment there are no leaks that I am aware of. There are a few small light...
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    Vaillant Ecotec plus high pressure

    Hello, I've recently noticed the pressure of our 3yo Ecotec plus 824 rising for no apparant reason. I've only ever had to top it up a handful of times since installation but it had gone up to 2.5bar so after releasing some pressure and getting it back to 1.6bar last thursday it has gone back...
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    Roof terrace

    Hello, We currently have a approx 10ft x 9ft bathroom/hallway extension with a flat roof. We are planning to extend the kitchen alongside this which would have meant a wider flat roof but we now want to create a roof terrace above the bathroom and kitchen instead of a boring flat roof. It...
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    Low energy downlighters

    Hello, I could do with a little advice on this subject. I currently have 2 rooms with a standard setup of halogen downlighters, transformers and dimmers. I don't think the job was done properly as some of the bulbs no longer come on in the cellar (bulbs have been checked and appear to be...
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    Flashing downlighters

    I'm have a problem with my 4 kitchen downlighters, which have been in the house for at least 6 or 7 years (before we moved in). In the last couple of months they have started to flash in a dim disco stylee before coming on properly after about 10 seconds. I believe the bulbs are 50 or 60W...
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    Leaky Mistral TRV

    I've had a Mistral TRV on my bedroom rad for about 18 months or so. Noticed that there was a small wet patch on the carpet by the rad and checked the valve to make sure it wasn't the cat. The actual leak appears to be coming from inside valve unit rather than any of the connections to the...
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    Advice on adding inhibitor/chemicals to CH

    Hey all, I'd like to add some inhibitor to my CH system and could do with a little advice. I have 6 rads in all and a Vaillant Ecotec plus condensing/combi. How can I estimate the amount of water in the system and the amount of inhibitor to add? How often should system have inhibitor...
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