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So after moving to a condensing combi, I have a leak somewhere in the system and it's losing around 1/2 bar every 24 hours. Do you guys have any bright ideas that I could try before ripping up the floor? I haven't tried leak sealant or putting aftershave in the system yet... But I really...

Any sealant in particular or will custard do the job?

a medium level of effort...looked under the floorboards in 4 rooms but not tracked the pipes all around the house. They do go under 50 year old solid wooden flooring and under concrete too. It will hurt to start ripping all that up...is sealant not worth a shot to begin with?

I have a leak someone in my old CH system....occured after installing a new boiler. Losing around 0.5 bar every 24 hours... any ideas if its worth trying sealant before ripping up floorboards? and if so, any suggestions on which have worked for people...

So do you think that would work? What exactly does it do? No thoughts on the sealant anyone???

Standard 3-bed semi, Whats DS3? And whats the sniffing all about??

So had a new Valliant 831 fitted in my old house with old central heating system. The pressure drops around 0.5 bar every day - basically from the normal zone right down to zero. Valliant engineer has come out and assured that there's nothing wrong with the Boiler. I found two very small...

Yes, it has the PCB. I don't know what he checked, wasn't at home when he came around. It does it a lot more often when only the HW is on. The pipes creek and after lot noises the vent pipe starts venting. After which, it all calms down again. So I will change the following 3 parts...

My boiler is having problems. After a while (a few hours of the heating being on), it will turn itself off. Then, almost instantly it will attempt to fire back up but will fail a few times before actually starting. But then it will turn itself off again! This cycle repeats a few times until...

Know of any decent one's in the Birmingham area? Few bob sounds hugely expensive

The timer on the boiler works so CH and HW can be set. The roomstat was installed with the boiler and doesnt really work. It doesnt set the temp but turning it up fires the boiler up. It's more an on off switch in disguise

Boiler Model: (not at home) System Type: http://www.diydoctor.org.uk/project_images/boilers/Conven_s.gif Valves: No motorised valve and no thermostat on the Domestic Hot Water Storage Tank

What more d'ya need to know? I ask this whilst paying for your pension, kev.. :)

I flushed the system myself only a month ago because of this but it doesn't seem to have helped (the problem has been intermittent for a couple of months now) Also I live in a soft water area

Do you think it is a boiler problem?

So I have an ancient open vented system with a relatively new boiler in place (Potterton - 5 yrs old). When the thermostat on the boiler is turned up to above half (as it has been for the past 5 yrs), the HW has been heating fine. However recently, when the HW is turned on, after around...

Is there any way i can test these myself? Or is a plumber necessary ?

My central heating system is very old - the boiler itself is around 5 years old - potterton. I think it's an open vented system - there are two tanks in the loft - one for hot water feed and one for heating feed and the actual hot water storage tank is in the bathroom. When I put the HW...

Thanks for the help, it's working now! Saved me £90 for a pointess PCB board and then a call out charge just for the guy to move the float. Cheers guys :lol: The missus is happy, too!

Guys...anyone....a little help...??