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Always vent with boiler off,dont have pump running,if your c/feed is blocked,then you can backfil system from main,but make sure u get c/fedd cleared as your expansion may be blocked,is it a seperate feed and ex,has it got a 22mm pipe over the top of small tank or 1 22 m pipe into bottom,what...

Get in the loft,find little tank,check water is working at ball valve,see if water is full in tank,check to see there is no valves on pipe from bottom of small tank,if so open them up

I would like your advice on a queation ive asked before please.I know i cant fit a new motor on a fan,when the motor is off a diffrent boiler model.I would be really grateful if you could help me unjderstand how and why it is that the old fan had a motor with the exact details on as new...

mzv in them is there,a 2 port,?

So the heat is making a seal,its normal,it can stop when hot

Is the pump running,have you made sure auto a/v is open and make sure,you have valves open under boiler

Why not ,its running to fast and cant cope as it is freezing out so the incoming mcw will be freezing

To the Bent gasman,I have forgotten more than you will ever know,I come on here and when i seen the attitude of the few who have gave themselves a status as some type of masters group,i just do what everyone you know will do take the **** out of you,you are idiots.I bet you live for the job,me i...

Is it ok,to fit non condenser combi,if there is no were to take a overflow pipe.It is in a cupboard in the centre of the house,upstairs,the safety relief pipe was run onto the old 22m copper overflow of the old tank when changed over 10 yr ago,now they have all wooden flooring down,and a...

That should be condemmed its a disgrace,how can you leave a job like that,its easier and quicker to fit stand off clips every 18"and use a bending machine,and the wiring disgraceful,why not use some conduit to keep it neat,you would be suprised how neat my work is,i am a expert with a bending...

I have a diverter valve that is along with 12 other's in perfect condition and wasnt even 6 months old when the complete boilers were swapped and i got them for spares,as i could buy a part and take the ones i had back and swap them for brand newie's.If you need one i will get it to you.free and...

If the diapraghm is split,then swap it,£3 or £150.and easier to fit

was the diapraghm split or holes in it,if the diapraghm is ok and its worked 3 times,i would be looking at water pressure before youchange the valve

YES.sorry i didnt see 2 MONTHS dont touch ,well spotted stingray

Can you take cover off and see if you can id the diverter valve

Have you tried to light the (air).if its building up reguarly then its properley gas built up from the dirt, which is in there because it hasnt been treated,if its a open vent system,go and get some inhibator but first throw some cleanser in there and leave for a week or two,drain it out and put...

Skirting heating anyone?. I went to a job today and he had a new combi fitted 8 weeks ago. He has skirting heating all over the house,since new boiler went in its been working upstairs nothing down,it was ok on old combi and when he got the firm back who done new combi,they turned upstairs...

Green button type, i can get you one for £40. If you can get to liverpool.

Isnt it better to have a 28m feed & exp,than a 15mm c/feed and 22m exp.Surely a 28 m c/feed has no chance of blocking and will never need a p/flush to clear that side of the system .so just a blank on the 28mm at the tank,dont have a valve fitted on it and left on.

I would get a screwdriver,open thr front of the pump.round plug which undoes turning anti c/wise ,take it out,get a small screwdriver and see if its spinning,you will feel it if it is,if not turn it manually with a screwdriver