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Sorry to be the bearer of bad news, but I did have a leak in one of the pipes and it did involve taking up some of my concrete floor. I basically spent a whole day flooding the system - I eventually found a wet patch in the concrete, took up the concrete and fixed the pipe. It's been working...

Thanks for the responses. Unfortunately have already bought one!

Hi - I have a Valliant ecotech pro combi. I would like to fit a timeSWITCH 140. Is it just a case a plugging it in to the connectors, or is it a job for a pro installer? Many thanks

Hi I posted on Friday and was looking for a bit more info. I have been having problems with my CH sytem. Have discovered that I have a leak in the pipes in concrete. Concrete has been dug up where there is a damp patch (in my bedroom, which is the room next to the kitch (where the boiler is)...

Thanks - the pipes I can see are defo the heating pipes as they get red hot. Presumably once they've managed to expose the pipes below the already exposed pipes, it should be a fairly easy task to fix? Just glad this is all on insurance!

I've had ongoing problems with my CH system. Has being going on for about 2 months and I think I'm finally getting close to solving it. Was regularly losing pressure on my boiler when heating was off and pipes were cold. When heating is on, pressure is fine. All my pipes are in concrete...

I posted on here about a month ago and had some really helpful replies. Had a new boiler fitted which started losing pressure. Had the installer back who confirmed installation was ok. Biaisi also confirmed that there was nothing wrong with the boiler. Was told that the only other...

Thanks for your help Tony. I closed off the flow and return valves and went to work. They remained closed for about 8 hours. When I opened the valves, there was a rush of water and I had instant loss of pressure. Is this what you would expect to happen? Thanks

Thanks Tony. I guess at least I now know for sure that my boiler is working ok and that it is "just" a leaking pipe imbedded in concrete..........

Hi, have done what you suggested. I pressurised up to 1.5 and turned off both the heating flow and return valves. The boiler hasn't lost any pressure. Presumably this means that the problem isn't the boiler but the heating system? Thanks

Thanks Onetap. I called Biasi this morning. They suggested (as did you) that I shut off the two isolating valves for the heating flow and return on the bottom of the boiler. I was told that these should have little plastic caps on them and it is just a matter of tuning them off. I had a look...

Thanks, when I say turn to DHW, I mean change the setting on the boiler from DCH to DHW. Pressure drops regardless of whether or not I'm drawing hot water. Will try both your suggestions. Thanks

Thanks for your replies. It is a combi boiler. When you say hot water storage cylinder, do you mean an immersion tank? (sorry If I'm asking a stupid question). If so, then no, I don't have one. Like I say, when the DCH is on, pressure remains constant. Had the heating on for 12 hrs...

Thanks. My flat is an old converted shop. Probably built circa 1890 and converted in 1990.

I've posted a couple of time on here and the responses have been really useful. However, I'm still having problems...... The guy who rents a room off me called me whilst I was away saying that my 13yr old Saunier Duval Boiler was making a horrendous noise. He'd also been away so I'm not sure...

Gosh, hope it isn't a leak under my concrete floors! Is it significant that I only lose pressure when the heating is off for a while? Pressure is fine when the heating is on. Will check the blow off pipe when I get back from work.

Is there anyway that I can check this? There is no apparent leaking but I dont really know where to look!

Thanks. Yes I do have a room stat as well. Yes, they did fill in the benchmark cert at the back of the manual. I have actually just checked the boiler and have lost pressure again. Therefore no heating or water again! I assume that I need to wait for it to fully cool down before re-pressurising?

They were Corgi registered and said that Corgi would be notified and that I would receive a certificate from Corgi in due course. Just want to be armed with a bit of info when they come tomorrow as to the possible cause of the pressure loss! They appeared to be very professional and had no...

Many thanks. I'm not sure if they did flush the system but it wasn't a cheap job. I assume that this is something they should be able to rectify when they come tomorrow? Thanks