The problem with fixing carpet burns is that when they are larger than a few centimetres you need to replace the burnt portion with a new piece of carpet. This is fine if you have a spare piece of the same carpet but if you don’t, you may need professional help to fix it.
To repair a damaged carpet with a scrap, cut out a rectangle of the carpet which is a little larger than the damaged area. The pile and the pattern must fit the missing area and run in the same direction. Carefully cut the scrap to fit the damaged part exactly by placing it over the carpet and using a sharp knife. A carpet burn needs careful handling.
For effective carpet burn repair, don’t do it yourself. Get help from professional carpet repair experts like Carpet Surgeon. Carpets need careful handling and fixing can be difficult.