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Hi thanks for reading. I have a fairly old semi detached 2/3 bedrooms, 2 bathrooms (showers mains but not often used same time). Existing old combi 22mm piping at gas meter and at boiler but quite a long route from basement at front of house to boiler at back of house (around 20-25m as it seems...

Thanks so much both - I’ve checked when I run the hot the central heating flow pipe doesn’t get hot. Apart from the pcb, what do you think about it being the plate heat exchanger or the thermister. I’ve had a couple of RGIs around - one thinks the plate heat exchanger as water luke warm so...

Would be grateful for any advice. My Glow worm combi boiler (16-18 yr old) is heating radiators fine, but a few weeks ago starting producing only luke warm water. This morning after the central heating was off all night, only cold water came out the hot water. This evening (the central heating...

Thanks very much. Oh dear so the whole underfloor heating system might need work?

http://s3.postimg.org/j688oe1c3/image.jpg Hi please see picture attached. Ive moved into a newly renovated flat with underfloor heating. I noticed the switch for this looked like this this morning. Unsurprisingly the digital screen is blank. Can anyone tell me what they think has happened?