[Elecraft] KPA-500 Failure

[Andy Durbin]

"With the OPER light GREEN and slowly increasing the RF drive level to the amp, there is a point where an internal relay 'click' can be heard, the 50-watt LED on the top row of LEDs turns red and the FAULT light turns red."

All the KPA500 LED are single color.  The 50 W LED is either lit green or not lit.  Did it appear to be red because of light leakage from the FAULT LED?

Some quite detailed discussion of KPA500 failure modes on the groups.io forum:

https://groups.io/g/KPA500/topics

73,
Andy, k3wyc