[Elecraft] KPA has FAILED...high SWR reported by K3 when amp in "Operate"

[ke9uw]

My KPA500 causes a high SWR showing at the K3 when the amp is in transmit
operate. All else seems to work ok...reloaded firmware...checked
faults...something about "power lost without controlled shutdown".

Any ideas? Pin diode?

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Chuck, KE9UW
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