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I didn't drain the system I just let some of the water bleed out the drain valve (in the kitchen) with a hose into the sink whilst the F&E tank was putting fresh water in from the loft - trying to get rid of the bubbles and therefore clanking. It's looking like the best way to fix it is with...

It was never fixed. I traced the wiring that I could and I couldn't see anything amiss. I was confident that the parts I replaced were like for like and I was careful to swap a wire at a time from old to new components. It still blows fuses almost daily but as you've seen from my other posts...

I've tee'd off the feed to the 3 way valve (in the airing cupboard) with a vertical pipe approx 10" long and put an isolation valve and an air bleed on the top as described. This hasn't been very successful as you can hear the air bubbles in the pipes but very little air actually rises up the...

I checked the pump speed and it's on the fastest of the 3 settings. There is a drain valve on one of the pipes inside the boiler cover so I'll bleed some water out into the sink a little at a time and let it fill from the loft - hopefully that'll work. Should I buy and fit a bleed valve...

At the expense of sounding thick how do I increase the pump speed? Is there a switch or pot inside the tbox? Could this have been affected by adding 2 extra double rads to the CH loop? It seems fine when on CH mode there's little if any clanking but on HW it does it and I can hear the air...

No the noises and clanking are whilst its running and the odd bang after its turned off

I've recently flushed the system several times after fitting a couple of new radiators which is how the air has got into the system. And again the other night I drained the whole system off and it's no different after a week of normal running. The pump may be on it's way out but it seems to be...

Anyone have any ideas why my boiler has started making clanking and banging noises whilst its working? Is it a sign of near death? I tried some boiler quietening liquid but it didnt make any difference. It makes a right noise that seems to echo along the pipes There is some air in the...

Where do you get 24kW from? My boiler is a Halstead Best 30 which apparently is more like 11kW. He said an 18kW would give me plenty in reserve for the extra radiators I was going to have fitted. So back to the fan question.......

He was quoting me for a new boiler so I guess he was a heating engineer rather than a plumber. He said it was a really cr*p boiler and it was massively underated for the house / radiators. Can't afford a new boiler right now so was wondering if the fan made a difference I could get that...

I've been told by a plumber that the fan in my Halstead boiler is on it's way out due to the noise it's making. My question is does the fan have an effect on boiler performance? My boiler just seems to take forever to heat up these days and I just wondered if it could be connected. Cheers.

Bear in mind that the original and identical stat did the same. So you believe it's a wiring problem to do with the tank stat?

I don't know if it's important but when the fuse blows in the fused wall socket it sometimes fuses the cylinder stat contacts together making the hot water permanantly on so I have to turn the temp screw just to make sure it does actually switch off when it reaches the correct temp. A tap on the...

So you reckon to trace and check the wiring is the next step? I should still have the wiring diagrams from the new parts so I'll make a drawing of how it is now and go from there...... Does anything look "wrong" ?? I know I was really careful to only change a wire at a time when I...

Here you go - hopefully these are of help. Before anyone asks the water marks in the bottom of the cupboard have been there for years - there are no leaks anywhere I can see. These any good?

Well tbh I think I'm pretty much at that point now. I've replaced the obvious things. Problem is getting a guy with the know how to sort it. Can anyone recommend anyone in the Mansfield area?

Yes mate I have replaced this - and then tried the original again with no joy......

Because the pump runs whilst the HW is on so presumably it must work?? Is that not correct? Any ideas on something I can test would be great. I'm on the verge of having a whole new boiler but I don't want to find it's just the pump or something simple to replace. Thankfully the pump /...

It just doesn't make sense. All of the parts I've replaced have been replaced with exactly the same brand new items. All of the wiring was done on a change one wire at a time basis so I know the wiring is exactly as it was originally. The fault actually came on slowly over several months...

There are no leaks anywhere I've checked. All of the parts were replaced after the problem started. It looked like an electrical problem from the start hence the parts I've replaced. The problem started several months ago but I've not got it fixed as the heating hasn't been needed for...