[Elecraft] Elecraft KPA500 sn 1910 dead

[Andy Durbin]

"I have exhausted all the troubleshooting ideas that are within my capabilities.  I hope that another KPA500 owner may be able to provide information that I can use to get my amp up & running. "

Do you have the schematics and a voltmeter?   One of the first steps may be to ensure the low voltage power supplies are working.

Perhaps, even before that,  use a "Kill-a-Watt" or similar to see what current the KPA500 is drawing from the 115 V outlet.  Mine takes 0.15 A powered in STBY mode.

Andy, k3wyc