Hob extractor hood not working!

Discussion in 'Electricians' Talk' started by FUNDIMOLD, Oct 25, 2021.


    FUNDIMOLD Active Member

    Hi, I had one of the two bulbs blow in my extractor hood. There was a loud pop which blew the glass bulb out of the screw thread cap which remained in its socket. I replaced both the bulbs but the whole unit, including the fan, will not work. Is there anything I should check before getting an electrician to take a look? (There is a panel of isolator switches nearby but as this is screwed down with star head screws so I assume numpties like me shouldn't be fiddling with it! Cheers
  2. Ind spark

    Ind spark Screwfix Select

    Plug top fuse inside a spur?

    Internal fuse inside cooker hood?
  3. woodbutcherbower

    woodbutcherbower Screwfix Select

    I’m not a qualified electrician and therefore 100% stand to be corrected - but sometimes a bulb blowing can take out a fuse or a breaker. Is the extractor plugged into a high-level 3-pin socket or is it hardwired into a junction box? If it’s powered from a 3-pin plug (see Ind Spark’s post above) then check the fuse. I think it should be 3A or 5A.

    FUNDIMOLD Active Member

    Cheers chaps. The hood is hardwired and doesn't appear to have any removable panels where a fuse may be hidden. Never mind, I'll remortgage the house and call an electrician!;)
  5. FlyByNight

    FlyByNight Screwfix Select

    If hardwired it should be through an Fused Connection Unit (FCU) or a Switched FCU - check there.

    FUNDIMOLD Active Member

    There is a grid switch (?) on the kitchen wall which includes the hood but the other appliances are working fine. Looking under the hood filters there doesn't seem to be any inspection panels or bits exposed that hint of a problem.
  7. sparky steve

    sparky steve Screwfix Select

    Have you checked behind the extractor hood chimney to see if the FCU has been installed there?
    terrymac likes this.
  8. Bazza

    Bazza Screwfix Select

    Are there fuses in the grid switch. Send us a pikky, we like them!

    FUNDIMOLD Active Member

    OK, cos you like pix!;) I discovered the transformer doofer buried behind some bottles in the adjacent cupboard but I don't know if its for the undershelf lights or not. I think the other image is a grid switch - is that the same as isolator switch? The internal gubbins under the filters are covered in black cowl so it's hard to see anything. I'll see if I can get under the chimney this weekend. Cheers all.

  10. Bazza

    Bazza Screwfix Select

    The transformer will be for the lights. The grid switch appears not to have any fuses and I woukld expect there to be one with a3 or 5 amp fuse in it, somewhere...Under the chimney you go....then follow the mains feed to it.

    PS have you looked on top of the cupboards near the fan?

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