The answer to 'HVAC repair not cooling' is that there are several common causes, including a refrigerant leak, a problem with the compressor, or a blocked air filter. Symptoms may include warm air blowing from the vents, the system running constantly, and high energy bills. To troubleshoot, you can start by checking the air filter and cleaning or replacing it if needed. However, for more complex issues, it's best to call a professional HVAC technician who can properly diagnose and repair the problem.
HVAC systems are complex, and attempting DIY repairs can be dangerous if you're not trained. A professional technician has the expertise and equipment to safely and effectively address the issue, ensuring your system is running efficiently and safely.