TROY, Mich. —The NEWShas announced the publication of a new eBook,HVACR Service + Troubleshooting with The Professor, by John Tomczyk, a renowned HVACR professor at Ferris State University and aNEWScolumnist.

In this eBook, Tomczyk 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.

Sponsored by Ritchie Engineering Co. Inc., YELLOW JACKET Products Division, the new eBook, which is a $10 value, is being offered for free download.

Available in three formats — PDF, digital edition, and iPad version — the eBook may be downloaded at

Publication date: 9/3/2012