The answer to 'inspection not cooling' is that the most common causes are a refrigerant leak, a problem with the compressor, or issues with the air handler or ductwork. Symptoms may include warm air coming from the vents, the system running constantly, or the home not reaching the set temperature.
If the system is not cooling properly, the first step is to check the air filter and clean or replace it if needed. You can also check the thermostat to ensure it's set correctly. However, if the issue persists, it's best to call a professional HVAC technician to diagnose and repair the problem. Attempting DIY repairs on a central air conditioning system can be dangerous and may void the warranty.