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Mouldy patches on bathroom ceiling despite using bathroom extractor fan
My bathroom ceiling has started to get mouldy patches and I believe this could be due to the bathroom extractor fan not working properly. However, as it is still making a whirring noise, I am not sure if the fan needs cleaning or replacing.
What would be the best solution if I did not want to do the work myself?
4 Answers from MyBuilder Electricians
Streatham • Member since 11 Nov 2011 • 338 jobs, 100% positive feedback
I would have the fan checked to ensure it's been installed properly, often we come across fans that have been installed where the air is not actually venting outside but being recirculated back into the bathroom or into the void in the ceiling above the bathroom.
Answered 28th Dec 2013
Gateshead • Member since 21 Jan 2014 • 9 jobs, 100% positive feedback
Hold a piece of paper against it, if it can support it without your hand helping then it
has suction . If it makes a faint clunking sound especially on start up the bearings are failing, or heavily linted up, (dust) on the fan. Good luck Steve Clayton
Answered 22nd Jan 2014
Most fan manufacturers recommend monthly cleaning of the fan blades.
Answered 28th Dec 2013
Hi if the patch has only recently started apearing then it could be either that it is blocked at the fan entrance with lint and dust etc and needs a good clean, it could be that the outlet is blocked or has something lent on it in your loft starting a condensation build up or it could just need replacing completely. I would check the first two things and wipe down your ceiling with a mould cleaner, then possibly use a sprayable stain blocker paint, then wait for a few weeks to see if this solves the problem. If not call your plumber or electrician who will be happy to take a look. Thanks John
Answered 27th Apr 2017
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