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Marley Bathroom Extractor Fan 5 Inch 5" In-line Ventilation Without Timer Flexible Ducting Kit Included Wall or Ceiling Mounted Kitchen Bathroom Shower Wet Room WC

£9.9£99Clearance
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As there are several different ways that a timed extractor fan is wired up, here we will cover the most common method; Taking a power feed from an existing bathroom light. The 3 pole switch ensures complete disconnection of supply to the fan so that maintenance can be carried out safely, without the need for a qualified electrician to disconnect the wiring (N.B. if you are in anyway unsure of how to carry out routine maintenance/cleaning on the fan, you should always seek the advice of a qualified electrician).

This briefly covers the 2 main different types of extractor but for a full and detailed run down, see our types of extractor fan project here. Types of Bathroom Fan Switch Configuration With most fans there will be 2 or 3 different settings that can be used. Once this is done, the circuit is isolated once more until the finish is completed. He then writes up and issues the works installation certificate. Again, if installing a axial fan through the wall you may need to chase out a section of wall to run the cable to the fan. We have concentrated on the actual wiring in this section, rather than the other elements of the installation. If you want to know about these, simply work through the steps in the section above.

In this instance, the switch live (SL) connection is not used but it is recommended that a 3-pole switch is still fitted as it would allow the circuit to be reconfigured to work with the light switch in future if desired. If this is in a ground floor bathroom, you may need to pull up some floor boards to access and wire up. If you are unable or don’t want the fan wired off of the lighting circuit and want independent control then an independent switch will need to be installed. As we have stated above, if an extractor fan is being installed from scratch then this will need to be done by a qualified Part P registered electrician. However is you are simply replacing an existing broken unit then you are able to do this yourself. When wired to its own switch, the switch itself will either be located outside of the bathroom, normally above the door or it can be inside as long as it’s in the correct zone and is a pull cord switch.

If it isn’t and there is no official evidence to prove it’s been done by a professional with the required qualifications then in the event of any issues it is likely that your home insurance won’t be valid and if you come to sell your home then this can again cause huge issues.Next, the fan should then be connected using 3 core and earth cable (depending on the model the earth may not be required), with the extra cable being used as the switch-live (SL). When it comes to the cable that should be used, as extractor fans are low voltage it’s possible to use 1mm or 1.5mm cable. Also, for timed unit extractor fans, as there is an extra cable you can use 3 core and earth, however if wiring a standard fan with no timed switch, 2 core and earth is fine. However, if you are simply replacing an existing extractor fan because it’s broken down or failed then you are allowed to do this under Part P. As it’s in a bathroom, although it’s not required, the belt and braces approach is to fit a 3-pole isolation switch so that all potential live points; permanent live, switched live and neutral are isolated when the switch is turned off. In terms of each end when installing an inline fan, you will need both internal and external extractor fan vents.

In terms of zones and where a switch can be fitted, this is generally best done in an area of zone 3, but you have to ensure that the correct rating of switch is also used, but your electrician will know for sure what to use. Tools and Products Needed to Wire a Timed Extractor FanDespite this, if you are unfamiliar with working on and around electricity then you are better off getting the pros in to do it for you! Wiring a Timed Extractor Fan Switched on by its Own Switch

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