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You should not have TRV,s on every rad, there should be at least 1 without :shock:

Are these center screws a standard thread size. I have an old pump I was going to bin, but may now remove the bleed screw as a spare?? 8)

I would like to know how the guy at the shop knew there was nothing wrong with your pump just by looking at it. My last pump was running fine, not making a noise and the impellar looked ok. But on very close inspection, I noticed that the impellar had a small amount of scale build up right at...

This site may be helpful for you to source cheap weld on steel fittings: http://www.bes.co.uk/products/161b.asp?ref=google-BP-Pipe-Fittings&kw=pipe%20fittings&gclid=CM3n4uO48pcCFc0e3godGk8hCw Steel melts at approx 2700F, where as yellow brass starts to go at about 1700F. As long as the...

The engine you have referred to is an aero jet engine, I work on gas turbine generators producing 140 odd megawatts. :wink:

Also appeared to have a partial blockage in the pilot gas line so I have removed it and cleaned it out and now the pilot light is far better 8) Fingers crossed its warming up now.

As you may have seen from my previous thread, Ive had all sorts of problems with my boiler which i have finally sorted out, however I did in the process, move the burner pressure up and down whilst trying to keep the thing alight. Ive put it back to where it was but was just curious how much...

What temp differential should I expect to see across my Wickes 50 balanced flue boiler. I think I "may" have inadvertantly moved the pressure regulator nut so I just want to make sure that my boiler is not firing too hard now.

right I have re adjusted the pilot thermocouple position slightly and (All Fingers Crossed) The boiler has cycled happily now for an hour so I think I may have sorted it :D

oops double post sorry.

I have tried the above and left it all night, I am happy the system is air free now. I also shorted out the over heat stat temporarily to see if that was causing the problem but it still tripped out. Surely the only thing that could be causing that to happen now is the pilot thermocouple or...

Did not turn any zone valve positions, just turned off the water into the header tank, opened the bottom drain and the rad bleed nipples to drain down the last bit from the rads. Shut it all off, opened up water to header tank, refilled, bled it all ,fired up the boiler and its been tripping...

I dont think its blocked because when it runs for 5 minutes or so before tripping, everything gets nice and hot (all the rads in the house and the inlet and outlet of the hot water tank?? Im going to leave the boiler off but with the room stat on overnight so it continues to pump around cold...

Old balanced flue Wickes 50 (Halstead Boiler). Everything working perfectly but today I decided to drain it down and put in some cleaner. It was not dirty when i drained it as i only did it a few months back but never added any cleaner. :cry: Now I have refilled it and got rid of ALL the...

My central heating started doing a similar thing lately, I have a Digistat 3 programmable thermostat and despite it being set up for different temps, it just decided to make up its own mind about when it was going to come on and how hot it wanted to get. After searching this forum, I found a...

Some thoughts: Could turning the pump speed down reduce the build up of pressure and result in less frequent "Blow Offs"? Could some kind of diffuser be fitted to the outlet to silence its Blow Off? Failing that recirculating a small amount of water back to the tank should prevent...

You say your neighbour is not being helpful, this is going to be a problem because I reckon you are going to need to carry out all the checks you have done in your house in his house too!! Have you been allowed to enter his house and see if its audible in there? I had a knackered central...

Ah I see, I have 8 rads in my house but only the upstairs 4 have TRV's on them so there is no way I could cut flow completely. Looks like Im OK then. 8)

is the boiler making a loud rumbling sound like your kettle does?

The bypass does exactly what it says, but is it a problem if you do not have 1, as I do not on my set up? Cheers Dave.