I was called to a home to tune up and improve a radon system. The system was not working properly, and the homeowner was concerned about the health risks associated with high levels of radon in their home. I arrived at the home and performed a thorough inspection of the system, including checking the fan, pipes, and sensors. I also tested the radon levels in the home and found that they were above the recommended level. I recommended installing a radon mitigation system to remove the radon from the home and improve the air quality. The homeowner agreed to the installation and I scheduled the work for the following week.