Still Blowin fuses %###$$$!!

[Huw Powell]

> After blowing two fuses for the fresh air blower on my 84ksq during a
> cold snap a few days ago, I decided to take advantage of a vacation
> day I took today and swapped out the blower.  It was in the balmy
> mid-20's and I took my time and investigated everything I could while
> performing the swap.  Upon completing the job I hopped into the car,
> fired up the engine, waited several seconds and turned on the
> blower...and it worked like a charm across all four speeds!  About two
> hours later (and 10 degrees cooler) my son took the car out for ten
> minutes. When he returned he reported that he had turned the blower on
> the lowest speed, and it had gone dead...of course the fuse had blown
> again!

I was thinking about this yesterday and two factors occurred to me. 
Probably useless ones, two...

1. when cold, electrical motors and such have lower resistance - hence
draw more current (this would only really explain a problem at the
higher settings)

2. perhaps the fan bearing is getting a bit gunky with age - and the
gunk is thicker or stiffer when very cold, forcing a higher current draw
then.

other than that I am no help.  I suppose you could try swapping the fan
to see what happens.

-- 
Huw Powell

http://www.humanspeakers.com

http://www.humanthoughts.org