TROY, Mich. — Get insight from John Tomczyk, NEWS columnist and renowned HVACR professor at Ferris State University in Big Rapids, Mich., through his “HVACR Service + Troubleshooting with The Professor” eBook. The 48-page eBook covers 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. The eBook is available in a PDF version, digital edition, and an iPad version. For more information visit www.achrnews.com/NEWSebook.

Publication date: 9/3/2012