[Elecraft] K2 doing weird stuff again!

[Eddy Avila]

Don kindly helped me out a couple of years ago with my K2 (S/N 3500+) with a PA HOT error when the K2 had been sitting off in my house, room temp about 67degs. Lately now when I turn on K2 from a cold start the fan turns on immediately and when I try to transmit into a 50-ohm dummy load I get the PA HOT error and the rig won't put out power now. Originally, the tPA was set for about 20c which is 68f, which is the room temp in my shack.
So, as a hunch I ran tPA through 255 and set it at 5c (41degs f) which, I assume you, is not the temp in my house/shack....HI HI!! I ran tPA back up to 20c and the PA HOT problem returned. So, I set the tPA at 16c (60degs F) and my K2 is now happy!
Any thoughts what's going on, is my K2 starting to head South, or maybe I should consider doing a hard reset? I hate a reset cuz all the filters also get reset and even after writing down all the values, it's still a pain in the a**!
I have the KPA100 and the latest firmware from a while back.
As always, thanks for any advice/help offered!
73
Ed