An extractor fan was fitted as part of the job and the electrician has fitted a pull cord fan isolator switch in the bathroom. This means that there is 3 pull cord switches hanging from the ceiling which looks really messy - fan isolator / shower isolator / lights Then permutations take place some people do not like the fan on every time they enter the bathroom as at night they can disturbe people and want an isolation switch If I wish to isolate the fan, am I correct in saying I will have to disconnect the cable from the fan to spot 1 and and run a new twin core and earth (switched live/neutral) from the fan towards the pull switch (actually isolator) or should I just disconnect both (green) cables and run 3 core and earth instead? The only other terminals are com and what appears to be a symbol with a number of horizontal deminishing lines with one vartical line above, or otherwise, depending on how you look at it?

I've seen plenty of bathrooms with fan isolator switches fitted, usually high up next to fan or above door and out of zones Have read this issue before regarding M I and fan protection via 3A fuse. No sign of this and as I'm sure is pretty usual, the supply has been taken from the lighting circuit and so protected with a 6A breaker at CUThe cable running up the left from the fan and along the top towards the pull switch is using a single (brown) wire for the live. Not able to clarify if It's running directly between the two, but presume (1 wire) they are? So, with one of the four cables identified above, that leaves three cables, another of these cables must be from the fan, leaving two? Should there not be two from the electrical circuit, one for the lights and two (as described above) from the fan, so five in total?

I know that they could have fitted a light switch outside the bathroom to get rid of one pull cord but surely would have been neater to fit a regular isolator switch either in bathroom (outside of zones) or just outside bathroom door

Is she being fobbed off here ? I think so and would you guys fit a pull cord isolator, resulting in 3 pull cords In saying this there are electricians that will say the fan permanent feed can be isolated from consumer unit circuit breaker and feed for switched live to fan should be covered by this for maintanence

Fan does have an over run timer and the pull cord switch is a 3 pole isolator made for fans (even has a fan motif stamped on it) so not an issue there regarding full 3 pole isolation My sister asked the firm if they could fit a switch isolator but was told "no switches in bathroom" The cable running from the fan to spot 1, spot 2 and finally towards the pull switch is using a single brown wire for the switched live and a single blue wire for the neutral. Two other cables are also looped between the spots. Okay, at the upstairs fan there are two twin core and earth cables, one is using the live (brown) and neutral (blue) in the correct connections, the other using the live (brown) in the switched live connection. Any wires I have not mentioned are snipped flush with the grey outer sleeving. At the pull cord there are four cables, only the live (brown) wire is being used in the switched live connection, the other wires on that cable are snipped flush with the grey outer sheething. I believe the electrician used two twin core and earth cables instead of one three core and earth cable to wire the fan to the pull cord.First of all is it a run on fan that has been installed if it was then the sparky should have fitted an isolater for isolating live feed to fan run on facility out of zone areas This issue has been discussed loads on this forum, I see Seneca's post above regarding this but would bet that more often than not, a 3A fused spur is not used