Re: KPA 500

Posted by ANDY DURBIN on Apr 10, 2020; 10:32pm
URL: http://elecraft.85.s1.nabble.com/KPA-500-tp7659606p7659639.html

"60 deg C with fan not running is not normal.  60 deg C is the nominal temperature for start of fan speed 3."

The conversation was continued off "list" but there are a few points that I'd like to be in the archive - 

There would appear to be two possible failure conditions.  Either the fan is not being commanded on when temperature exceeds 50 deg C or the fan is commanded on and does not run.

Fan speed 1 is easily heard by anyone with normal hearing.  The fan isn't quiet.

Fan operation at all speeds can be tested by using the KPA500 menu to select FAN CTL and cycling though the speeds.

Commanded fan speed can be checked by using the KPA500 utility to send command "^FS;".  It will return "^FS0x;"  where x is the fan speed setting.

73,
Andy, k3wyc









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