Laptop fan problem: keeps devising surging noises?

laptops have heat pipe and fan as chilling system. pipe contains liquid (similar to icebox or AC).
normally pipe is sealed but whether the pressure drops (leak) heat pipe is far less effectual within abidance your machine cool so fan faculty run more often. also more running means more wear (and more dust in personal computer). some things happen arsenic laptop ages. getting replacement is usually problematic and/or expensive unless product is under warranty. pro tem fix could be cleaning it up / dust blowing.