On 11/30/2020 2:00 PM, Arkady via Elecraft wrote: > When I “run” I get fan starting running after 10-15 minutes. This happens to me when "running" with few callers on CW, sooner on RTTY, and within 5 minutes or less with WSJT modes. I've not experienced the other behavior you describe. 73, Jim K9YC