I had a similar problem. When I turned on the air conditioner, there was a very unpleasant smell in the house, as if a chicken had been fried. I wouldn't say I liked the heat, so it was uncomfortable to be in the place when the AC broke. An old friend of mine advised me to contact an air conditioning service company at https://www.airconservicing.org/type-of-aircon-service/ . I called a technician to my house. He came very quickly and handled the problem efficiently. Now the air conditioner works like new. The unpleasant smell is gone. All in all, I am satisfied with their work.