What if Changsha Haier air conditioner doesn't cool?

There are many reasons for not cooling. The machine is broken, the operation is incorrect, and the room is too big, which may lead to poor cooling effect of air conditioning. Do you often clean the radiator? I didn't know how to clean radiators before. I just wiped the filter with soapy water. Later, my friend asked me to use Jiaan air conditioning disinfectant. After using it, I was shocked to see sewage flowing out of the drain pipe. It's too dirty. Now my family uses Jiaan air conditioning disinfectant to clean the radiator every month. Air conditioning refrigeration is very strong, and the smell of air conditioning is gone ~