Re: [KPA500] Fan Control from KPA500 Utility?

Posted by W5UXH on Oct 18, 2013; 2:45am
URL: http://elecraft.85.s1.nabble.com/KPA500-Fan-Control-from-KPA500-Utility-tp7579971p7579990.html

Hi Gary,

Since I leave the fan at NOR most of the day, just bumping it up to
level 3 during the long qsos, the fan mostly does not run at all.

I still don't really understand why the fan sometimes kicks up a step
higher when I have it set to NOR than when I have it set to level 3.  It
is not that often though, but in general during our skeds I hear more
changing of fan speed between 0 and 4 than when I just leave it on 3
during the qso.

The fan noise is not a problem, I just prefer a more steady level while
in qso.

I worked many years on systems that used large numbers of 5V/300A
supplies and the worst problem was due to fan failures in the supplies!  
Too many callouts to drive 50 miles in the middle of the night.

73,

Chuck

On 10/17/13 8:36 PM, AG0N-3055 [via Elecraft] wrote:
> I'm a firm believer that fans
> whose bearings dry up and get tight are one of the biggest causes of
> failure in
> electronic equipment that runs all the time - that and not cleaning
> filters. :o)
> Since I leave most of my equipment on all the time, I would count on
> more fan
> maintenance/replacement.