[Shotimes] blower control module?

[Carl Prochilo]

.

If the fan just blows on high no matter what, that is a sign the
BSCM has failed.  When you actually look at it, you will see that
the design to be interesting.  Specifically, that module has a high
power relay with heat sink fins underneath.  The fan itself blows
air through it to cool the module.  Since there is no air filtration
coming into the cabin, those fins can get clogged causing the relay
to overheat and accelerate the wearout factor.  Now a 92 is 12 years
old so it's not that terrible that it fails now, but anyway the part
is probably toast and certainly a major inconvenience.  The repair
is fairly easy.  A 1/4" ratchet with extension will be useful.

When I asked about this, I was told that the part can be harvested
from a salvage yard since it is common with the SLO.  Make sure the
fins on the used part are clear of obstructions before installation.
-- 
Cheers,
Carl Prochilo
1992 Ultra Red Crimson

Justin Schick said:
> I think I am in need of one for my 92. Yesterday, I get in the car
> to
> head to my buddy's house after work. Fan was blowing on high through
> the
> defrost, no matter what I had the EATC set to (OFF, or any of the
> other
> settings, all which still worked). Stayed that way throughout the
> evening, multiple stops and restarts. This morning when I started
> it, I
> could hear the fan blowing on what seemed a slower speed than low.
> EATC
> again functioned fine, but fan speed would only change via the
> maunal
> knob. Even with the windows down, 50 degrees outside and temp on 90,
> the
> air temp changed but the fan speed stayed ultra low.
>
> So I need a BCM, right? I remember a link to a shoforum page about
> fixing these. Anybody got it? Anybody have a known good one for
> sale, or
> offer any tips on replacement?
>
> Thanks,
>
>
> Justin Schick
> silver 92 SHO in KC MO
> 204k and counting quickly
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