If you find your air conditioner not blowing cold air but running, there is a problem in your AC system that needs to be fixed. The exact problem depends on whether the AC is blowing warm air or no air at all. If there is no air getting through the system, there may be a blockage somewhere or a bad blower motor. If air is getting through but it’s not cold, there is another issue.
Before you try to figure out what’s going on, it’s a good idea to turn off the AC. Letting it run while there’s an undiagnosed issue could lead to bigger problems. That might mean even more complicated and expensive repairs. After turning off the AC, you can do some troubleshooting. Keep in mind that in the majority of cases, the best course of action is to call a professional to diagnose and repair the problem.