Check this website for repairing your refrigerator.
www.acmehowto.comhowto/appliance/
To fix this problem you must apply freeze free grease around the little propeller and before re assemble make sure you replace the old self adhesive foam seal around the evaporator element to ensure a moist free area to the cooling radiator
Your fan must be faulty. I can't think of any reason why your refrigerator would be making any noise. There could possibly be a loose piece or something rattling around in there when the fan is running as well. I would get it checked out in case it could be a bigger problem.
They will be many type of refrigerator problem when making noise. May be compressor will not working properly or any other also problem so i Suggest you for call a technician for permanent solution.
A fan is the main cause of refrigerator noise. Get your fan repaired from the service engineers. It happens when your fridge is old or not having proper care. Get it fixed soon so it won't initiate any other problems. Or get a new fridge. Here is the fridge I bought last year with low to no sound and smart features - Whirlpool Vitamagic Pro
They are using advanced technology to reduce noise and improving quality.
A few days ago, some of my home appliances had been damaged. Needs a person to fix them. For this, I found a website by searching Google. Contact them. They worked very beautifully. I'm very happy with their work. So I would recommend them as professionals. If you want to get their services. Please contact here for more Information.
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