[Icom] IC-910H heat/fan problem

[Marshall V Pochay]

I noticed just about the same problem.  I believe it is a design 
problem.  Fan only runs during transmit. I placed a small fan behind the 
rig, which blows toward the heat sink, and have not seen the problem 
since.  Added benefit, is the case is cool to the touch, and it is running 
24 hours a day.
Marshall  W9RVG  EM57rn

At 03:26 PM 2/23/2002 +0000, you wrote:


>Hello to all,
>
>         I have a IC-910H with all the option installed.  I haven't had any
>problems till today.  My wife being long winded was talking to a friend
>for several minutes in 2M FM about 40W when the radio cycled off and on
>when she keyed up.  I repeated this when I ran the radio on a dummy load
>for a while.  The problem appears to be heat.  When the radio is
>transmitting the fan will cycle from slow to fast until the PTT is
>released.  Then the fan stops.  Seems to be ambient temp build-up during
>tx/rx cycles.  Shouldn't the radio fan stay running until the temp drops
>below a set point from a thermostat?  I never noticed this before so I
>don't know it this is a problem with just my radio or a design problem.
>Anyone out there with an answer?  I don't what to send this radio to
>ICOM only for them to say it's okay.  I would appreciate if someone with
>a IC-910H could duplicate this test and forward a result to me.
>
>
>                                 Ron, N4GFO
>----
>Your Moderator: Dick Flanagan W6OLD, icom-owner@mailman.qth.net
>Icom FAQ: http://www.qsl.net/icom/
>
>
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