Originally Posted by mbell
My old 2009 Aerotrek had both modules fail in this way. The diagnostic trick from Lockwood is this: if it won't start don't touch a thing except to put an ice pack on the top module for a few minutes. In my case it immediately started. Once started it will continue to start and run all day, but likely need ice again the next day. Someone in Europe repairs them, but quickest fix is a new module or two. My understanding at the time was they don't tend to fail entirely, meaning once they start will continue to run. If you always start on both modules you could have one in this failure mode for years and never know it, as long as one of them is good for the start.
Apply heat or cold - sounds like my Doctor.