[Elecraft] KPA1500 power supply gone south

[Andy Durbin]

"For the record, the group that was renting my place on J6 for the contest a week and a half ago hard faulted my KPA1500 power supply just 4 hours before the contest started."

Ah, but did they damage it doing something really stupid or did the KPA1500 system fail to protect itself from a reasonably expected operator error?  Absent that information what can we learn from this event other than don't let other people use your stuff?

Andy, k3wyc