[Icom] IC-910H heat/fan problem

Sat, 23 Feb 2002 12:48:00 -0500

Isn't this the radio you have?

Julio
----- Original Message -----
From: "Marshall V Pochay" <[email protected]>
To: <[email protected]>
Sent: Saturday, February 23, 2002 10:47 AM
Subject: Re: [Icom] IC-910H heat/fan problem

> 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
> >----
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> >
> >
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