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    advice on how to identify why an extractor fan is no longer working

    Handymen

    My bathroom extractor fan is no longer working. It is turning on but not doing its job. How can I identify the exact cause?

    Asked by Karen on 18th Aug 2020
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    Best Answer

    Isomer Property Services

    "You will require a mustimeter to test..

    1. Identify Fuse maybe a locat spur or relay on distribution fuse . Test fuse
    2 Identify any isolator switch Humidistat and test for power

    3 see if Power getting to extractor.. No power check isolator /humidistat is in the operating condition. if power here is ok then wiring fault. if power at fan the fan fault..

    NOTE WARNING if you don't understand this do not try get a qualified person to check it out"

    Answered on 18th Aug 2020 - Member since Feb 2020 - report
    Arc Electrical Cumbria

    "Not quite sure on "doing its job"
    If you mean it it doesn't efficiently removes the stream from the bathroom, but has done in the past, I would suggest it's full of dust (inside the fan where you might not see it, or the bearing has dried out and is running slower than usual.
    If it's ceiling mounted, the fan MUST be a ball bearing type which you will pay more for, but it will last longer. If you Google how to size an extractor fan it will give you a simple calculation to work out how many metres cubed the fan needs to get the correct air changes required, you then purchase a fan nearest this figure, i.e. metres cubed per minute"

    Answered on 18th Aug 2020 - Member since Aug 2017 - report
    NBA Services

    "The fan motor itself may have failed or a fuse may have gone you would need a multimeter to test this."

    Answered on 18th Aug 2020 - Member since Aug 2020 - report
    Thor Fraser

    "Hi, can you send me a close-up photo of the face of the extractor fan no that's the the fan has been clogged over the years will particles of dust so it has compared the performance of the extractor fan ensure all electricity to the van has been turned off"

    Answered on 18th Aug 2020 - Member since Jul 2020 - report
    SortIt4u

    "If no noise coming out when switched on it normally means the motor has burnt out and needs replacing.
    The fuse could have blown get an electrician to check the circuit"

    Answered on 18th Aug 2020 - Member since Aug 2019 - report
    The pink Pinter

    "If not extracting fully like before then yes fan blades need cleaning...other faults could be ductwork may have a hole in if this in the loft maybe check it ...wear and tear could do this or mice etc...
    But could just be wear and tear on unit if old...they are not dear and are easily replaceable.
    I can do this for you...but any competant person can ...if your fan worked perfectly well before failing then just get like for like.
    Kind regards The Pink Painter"

    Answered on 18th Aug 2020 - Member since Jul 2020 - report
    Matthew Hellyar

    "Is it making the usual spinning noise? If so check it’s pulling air, by holding some light paper like kitchen roll over the inlet. It should hold the paper. If not the exhaust outlet may be blocked. Check external grill is free could have a build up of dust or insect debris. Remove vent and try to check ductwork from the vent to the fan. The fan may need removing but live wiring will be exposed so be carful. If ducting and external vent is free could be the fan itself the fan blades could have disconnected from the motor. Either way these fans usually last about ten years, unless the motor and bearings are greased each year after a good clean out of dust. Good luck."

    Answered on 18th Aug 2020 - Member since May 2020 - report

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