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thanks tony,i have not been home to reply, the f1 fault is intermittent,the central heating can be on for a couple of hours and go off with the timer and no problems, the next time it comes on with the timer for a couple of hours the f1 fault shows.it seems to happen at the end of the timer...

i had a problem with pressure dropping to zero,and was grateful for the advice on here that the expansion vessel had failed,which it had done so was replaced. hot water works okay,but when heating has been on, F1 appears on the control panel.the manual says it is either.overheating or no flame...

thanks,any idea what the valve looking thing on top of the pump is? it also has an allen key hole on the side.

it would have said 'which I unscrewed' if you notice it says 'which was unscrewed' , it had come loose, and why would there be gas coming out of something connected to the water pump. I fitted the complete central heating system plus the full house plumbing plus a full house rewire. the system...

i have a 5 year old protherm combi.when running it reaches 2 bar,when it cools down over half a day the pressure drops to zero. i fill it back to 1 bar but the cycle repeats itself.i placed a container under the pressure release pipe outside and it filled with water. i have had the front off...

they will probably put fcu's above work surface,but my question is about the rcd,thanks

thanks guys for your help,but which is it, lectrician says to comply an rcd HAS to be fitted,gasman says no,an rcd does NOT have to be fitted,

a mates having a new kitchen fitted,he dos'nt want any new sockets installed but they want to put a couple of spurs behind a washer and fridge. his consumer is the wylex rewireable type,the electrician has told him that the regs says he has to put his house ring (including kitchen) on a...

thanks,do you know about the tncs part

would a garage type consumer with rcd and a couple of mcbs still be needed to install just lighting in a garage/shed or could the cable go directly to a the light switch,in another thread i saw that tncs equipotentiol bonding needs to be taken into account,yet other threads on wiring...

thanks for all your replies, so is it ok to crimp as taylor says?

how do you sparks do a full rewire on an occupied dwelling, i assume it takes a few days to do the job? so how do you start to remove the old cabling and still leave the homeowners with lighting and power? also if you are just replacing an old consumer unit what do you do if the cables are'nt...

what i mean rf is that a previous owner could have connected let's say a light that is not easily found, so a lamp is still in the circuit, which i assume would show up as a fault in your testing?you can't advise the customer to have their lighting circuit rewired as it's not really a fault. so...

thanks jj. so lets say on a lighting circuit, all lamps/tubes must be removed,any electronics ie dimmers disconnnected,(what if something in the loft or hidden elsewhere is still connected) or something has been taken off the lighting circuit by a previous owner that new owner knows nothing...

if a spur is put onto an existing ring,or a few downlighters added to an existing lighting circuit,what part of the circuit should be tested? the new addition or the whole circuit. which certificate should it be under?

thanks to everybody who replied, now to find something else to question

thanks for the replies,but still a bit confused. do you mean spark "lighting circuit is supplementary bonded to the light switch" is a bond can be run from pipework to the lightswitch?.that can't be easy? (what is ECPs) if a bathroom is completely tiled how do you bond to say a wall...

can someone please explain the above. i have looked at the official diagrams that have been pointed to on this site. i understand that all the pipework in the bathroom has to be bonded together,but i don't get the parts about any electrical items,ie lights ,showers heaters, radiators etc, i...

can someone explain what part of part p, replacing this type of fuse comes under,thanks

so it is ok to do it that way?