[Elecraft] KPA500 Kit #400 problems

[ny9h]

had most of the same symptoms,,,,, exactly....
worked great ...went hi temp...

check the 10 wire ribbon cable .... . it was the ribbon cable with 
two rows,,and
mine was offset a row....( how did I do that ?)

big clue  the fan never turned on,,,   not when i even turned off the unit ,,,,
as it is supposed to run every time you shutdown...

anyway ... hope that is what it is ... an easy "fix"

bill ny9h/3