[Elecraft] KPA 500 failure

[Jorge Mejia]

Hello list members

I just finished putting together a KPA 500 which seems to be having problems. 
When I turn  on and try to run the voltage test,  the “HV” button does not respond ….  the led’s bar graph indicate 100 W and I can’t turn it off from the front panel switch,  I have to use the one on the back, neither can I hear the fan discharging the caps. when switched off from the back. Has any of the list members experienced this situation?