Get insight from renowned HVACR professor at Ferris State University and NEWS columnist, John Tomczyk, in this 48-page eBook covering a wide range of service and troubleshooting topics. Subjects covered in the book’s 16 chapters include: system check sheets, bad compressor valves, loss of air conditioning cooling, condenser splitting, frost on the compressor’s head, restricted TXV metering device, leak detection methods, refrigerant migration, and more.