John,
It is good to hear that you have had success with a fan setting of 2.
Like most mechanical components, there is a wearout time, but I suspect
it is in the vicinity of 1000 to 5000 hours. That is a lot of operating
time.
If you are concerned about wearout, just turn the KPA off (or standby)
when not using it.
73,
Don W3FPR
On 11/30/2018 10:30 AM, Monkeys wrote:
Is there any harm in setting the fan at level 2 and just leaving it
there? I would think the fan might wear out a little faster, but how
much faster? The reason I ask is that when the fan control is set to
NOR I find that the fan eventually...and understandably... kicks into
a super high speed whine on extended CW ragchews. But I have found by
setting the fan control to 2, the amp seems to like this 'pro-active'
cooling. I can ragchew to my heart's content and it never goes into
that high speed jet-taking-off or vacuum cleaner level. Has anyone
else changed their fan from NOR to 2 as a default and experienced any
side effects?
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