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Lf. is the flame detection probe or its wiring harness, this sits right on the heat ex and over time melts and sticks to the heat ex so looses continuty. To check if the detection probes faulty, get a multimeter pull the wiring off the probe stick one end of multimeter on probe connection...

It sounds like you've got a short circuit somewhere, as you say it's when the valve turns over id be looking for signs of water leakage round the valve which is dripping onto the motor and tripping it out or faillin that getting the multimeter out and checking the resitance of your neutral and...

I always thought they were the same diameter as a basket strainer waste?

Have you not seen "jobs from hell" recently? Some poor sod has to wraggle his sen down the drains and clean that ****e out. Main sewer ends up looking like blue john mines with all the crusts growing up and down. Thats almost as bad as customers putting loo Blues in there cisterns and...

What about the honeywell CM zoning kit, Expensive i know but does away with all the floor boards up and stuff.. effectively you make every room a zone as the TRv head comes on at your set points and is controlled form an external controller which is RF. There should be no need to drain...

You could try thr yellow pages or the local free ads. There's a big section devoted to plumbers and heating engineers with registered GAS SAFE numbers!!! :wink:

Before you smash it up, it hasn't got the lions paw feet has it?

He's not refering to thermal store(i think :) ) more likely what the fella means is a fortic cylinder. Check out newark cylinders, your'll understand then, basically it's all combined in one unit

How recent is recent? Sounds like the expansion vessel has gone :shock: you say this is new? i'd get em back quick sharp, does the pressure gauge shoot straight up before it bangs and blows off?

If the expansion vessel has gone, screw taking it off the wall. just cap off the outlet for the internal vessel and fit an external one on the return as close to the boiler as possible. Normally combi's come with an 8 litre vessel but i always allow a little more by putting a 12 litre in. Allows...

so have you got two seperate branches sticking out your wall or is on of these's stack's just for venting purposes?

The bottom picture, the bristan shower brackets are better than sliced bread :lol: No more buliding supports to fix packplates to Just make sure your pipe centres are 150

:? until you know what both these pipes sticking up out of the ground are i wouldn't even think about what you may or may not need. one could be a soil and one could be a storm water, or a soak away. I know someone who made this mistake, he's looking at thousands of pounds worth of damages...

Alright then wot about deposit that have formed and removing them. causes fan to stick etc. Wd is just on impeller to keep it spinning easliy. Wot about removing your flue hood etc and inspecting all the seals etc. My point is your on an open forum an tellin cusomers that we don't actually...

Thats exactly wot im doin at the mo, well i say the mo it's been like it 18 months :lol: Snaked the pipe work into both coils so am pre heating the cylinder through the solar coil so boiler aint on as long..

You need to buy a weir gauge to measure the flow rate and a wet pressure test gauge( monument or rothenburger) the gauge needs to be put as close to the mains incoming supply as possible, and you need to take about 5 different readings over the day. These have to be both standing and operating...

Have you tried turning off all the rads that are working and seeing if the problematic ones then get hot? If they don't could be a sure sign of a blockage or a badly designed system. I had one last week were the installer placed the return from the ground floor into a tee from the first and...

The top an bottom of it is 'wot ever the customer wants' within the constraints of the points raised by chris. But MOST requirements are possible. Speak to a good RGI and give him wot you require in terms of perfomance and he/she should be able to advise.

First things first you need to get some one out to check that the flue is suitable to have a gas fire installed. ( class one, is it lined, does it have a gas terminal etc) and then and only then should you think of wot fire to buy. No end of times i've turned up at jobs and the shed etc...