[ICOM] Pro3 Fan Questions

[Adam Farson]

Hi Bob,

There is no user adjustment for the fan operation. The Pro3 fan is operating 
as designed. I am sending you the relevant paragraphs from the service 
manual off-list.

It is important to ensure that there is at least 4" of clear space around 
the top and rear panel of teh Pro3 case to allow adequate air-flow for 
cooling. The front feet should also be extended.

Cheers for now, 73,
Adam, VA7OJ/AB4OJ

----- Original Message ----- 
From: "Bob Beatty" <rbeatty at mpinet.net>
To: <icom at mailman.qth.net>
Sent: Sunday, 26 July, 2009 19:21
Subject: [ICOM] Pro3 Fan Questions


>I have just received a new Pro3 and am having some issues with the fan.
>
> 1.  Without keying the rig, the fan periodically comes on and runs for
> about a minute and shuts off.  Is this normal?
>
> 2.  Today (7-26), the fan began to run whenever the rig was keyed and 
> would
> stay on from 30 seconds to 1+ minute.  By "keyed", I mean clicking the PTT
> and letting up.  This operation seems excessive.  I thought the fan was
> thermostatically-controlled and would only run when it got hot enough.
>
> I do not find the fan action mentioned in the owner's manual and I don't
> know if there is a user adjustment for what is happening.
>
> Any suggestions, opinions, etc. are appreciated.
>
> 73,
> Bob W4VQ
> w4vq at arrl.net