[Elecraft] KPA 500 Fan Not Running

[Harry Yingst via Elecraft]

I would try to manually spin the fan by hand to check if it has become bound up
Next I'd check to ensure the fan is firmly plugged in


      From: paul ecker via Elecraft <elecraft at mailman.qth.net>
 To: "elecraft at mailman.qth.net" <elecraft at mailman.qth.net> 
 Sent: Saturday, May 16, 2015 2:31 PM
 Subject: [Elecraft] KPA 500 Fan Not Running
   
Having a KPA 500 fan problem I believe. Was running the amp during RTTY contest and experienced - a Hi Temp  hard fault. The case was very warm to the touch and the fan was not running. KPA Menu - Fan Ctl - is set to normal. So I let it cool down and then ran a test calling CQ a normal run rate (Amp putting out abt 200W) and watched temp climb and the fan does did not come on. When I shut the KPA off, the fan does not run. Does anyone know at what thresholds fan should start running ?  Is there some way to do a fan test?73 Paulkc2nyu
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