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We've just installed two LED lighting strips around our roof lantern. I tested both two weeks ago and they were working fine, now one strip has stopped working. I have tested with a power meter and there is power to it but it isn't lighting up. Weirdly when I touch the strip with my finger it...

thank you, I will purchase one and give the air pressure test a try. In the meantime I'm not sure what to make of our lack of expansion vessel for the underfloor, it has never been mentioned by either the plumber involved or the merchants that sold us the system. I assume therefore they believe...

thanks all, really appreciated. I must admit I can't imagine a gas managing to get through the screed, de-coupling mat, adhesive and tiles in the right sort of place but that might just be my lack of knowledge of how inert gases work. It's one we will try though if we have to. In the meantime I...

Hi, I'm desperately hoping that some clever person out there can help... we have recently installed a water underfloor heating system connected to our combi boiler in our kitchen extension. It is just two loops (both about 50m in length) back to the manifold. Unfortunately the pressure in the...