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Ok your right but when using multi meter i'd be testing with setting on milli volts testing one side of oh stat and then the other if their was a big drop in the milli volts across the stat would change stat

Don't turn pump down to 1 on a combi keep on 3 the whistling is prob high flow rate trying to go through small gap in rad valves try opening them more to see if quietens down

If a grunfos 15/60 won't circulate it then its in a bad way if their getting luke warm your getting some circulation and leaving a milder chem x400 or fernox restorer in may start to work but if their stone cold with all other rads that are working turned off then you'll need to repipe them...

Too vague these boiler don't have any fault lights to give a rough idea where its breaking down i suggest a eng for this one

Why don't you call the national company thats charges a one off fee think its £144 regardless of time and material providing it only one fault and not a collection of faults waiting for smart a**e comments now

It's a brand new towel rail rad iv'e got,cust didn't want and plumbers merchant didn't take back didn't cost anything was just looking to fit it in my outside toilet theirs a double socket in their. Was just gonna buy a element for about £40 and screw it in the bottom fill it with whatever to...

I agree their crap but they still need fixing unfortunately

Try a new overheat thermostat the tc lead carries a milli volt through it and if the leads on the stat are not sound you can get it were theres enough voltage to just get the pilot to hold soon as you start it up the voltage can drop slightly and take the pilot out. The click you hear is the...

Not since the Fuse on the top left and resistor were moved apart and the fuse put in plastic casing. Used to get them burning or worse catching fire but havn't changed one for a while

Don't work for HeatTeam myself (Bigger Company than them) been on Potterton Puma Course 6/7 Years ago and know them quite well problems are almost always related to sludging up,, their mostly mechanical, electric side of them rarely go faulty, Have over 50 of them on contract in one set off...

Does anyone know any manufacturers of these heater elements so i can check their websites for info on them?

What's it for the question is a bit vague? For a boiler replacement or an upgrade of controls

I'd be looking at Pump and then Divertor valve but you can change the Wax Capsule inside the valve saving you money and time the rest of it is only brass casting and their is a locking nut between two sheets of metal which are a bugger to get undone.Their is usually a 30 sec/2min delay on the...

If boiler is shifting heat straight after pilot cutting out i wouldn't be suspecting it's cutting out because of over heating most common probs are overheat stat and thermocouple need replacing or if the pilot flame isn't burning right may need pilot assembley if you have a multi meter i could...

Are pipes hot coming off boiler when pilot goes out and do they stay hot when it goes out

I know how to change them on a highflow prob same procedure this is mine and not worcesters procedure. Undo nut that goes into heatbank and cut olive off undo pipe that is on dv going to heat bank(B port) and let it drop down into heat bank wont fall right in nut and olive from dv will stop it...

Would be best to use water if the stat failed it wouldn't get any hotter than 100C if i used oil it has a higher boiling point,What do you think? The only worry i had about using water was that it would keep evapourating but then if it was sealed it couldn't. Don't like it when iv'e got no...

Hi guys i'm a Gas Eng with 15 yrs experience but can't find any info for my question here goes. I have aquired a towel rail while in work and i have an outhouse that's not attached to house so can't run CH pipes to it. It has a seperate toilet and it's full of elec sockets. And I going to put...

I've done mine now that's what ive done in the end i used 25mm battens then used 25mm polystyrene board from b and q which is for flooring and then used them pack of 3 chipboard flooring which is for lofts and screwed them to the battens forgot to add that i drilled the battens to the concete...

Glad to see I havn't lost it. It will build up again you need to get to the root cause,ideally rip out and start again when you have the time and money,then clean out new system to pevent future blockages.