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  #1  
Old 12-05-2005, 03:06 PM
Krueger
 
Join Date: Jun 2005
Location: Buffalo, NY
Posts: 68
No Heat........and it's Cold....

The "Climate Control" on my '77 300D currently does not work - at all. The 16A blower motor fuse in the main fuse box will blow after running for about 1 second. The motor itself works - it will just keep blowing the fuse everytime I try to turn something on (ex. defroster, bi-level, etc). Any suggestions?

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  #2  
Old 12-05-2005, 04:31 PM
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Join Date: Jan 2002
Posts: 18,350
Quote:
Originally Posted by Krueger
The "Climate Control" on my '77 300D currently does not work - at all. The 16A blower motor fuse in the main fuse box will blow after running for about 1 second. The motor itself works - it will just keep blowing the fuse everytime I try to turn something on (ex. defroster, bi-level, etc). Any suggestions?
I'm guessing the dreaded ACC servo is locked up. Can you see any cracks in the housing?
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1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
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1993 GMC Sierra 6.5 TD 4x4
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  #3  
Old 12-05-2005, 06:30 PM
Diesel Giant's Avatar
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Join Date: Oct 2004
Location: Loganville/Atlanta
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Get an ameter reading on the blower motor before it blows the fues to see if its pulling too many amps. Otherwise you have a short somewhere.
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  #4  
Old 12-05-2005, 07:50 PM
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Join Date: Oct 2004
Location: Geographically challenged on the S.W shores of Lake Michigan in S,E Wisconsin
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perhaps new brushes from ************** with a repair manual included.
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currently
[1981 300 td tdidi 165500 dark brown/palamino-Brownie-mine-3k miles of ownership
1983 240d 162+++ Anthricite grey w/ henna red interior and hella lights-wifes car-Red

the above two cars are for sale
and can be seen on the cars for sale thread here. pix also available.


240d-144+ Manilla Yellow w/ palmino interior-greasecar kit-Blondie-the college kids car

23" gt 21 speed still on original tires-still got the nubs
21" khs tandem
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  #5  
Old 12-06-2005, 10:05 AM
boneheaddoctor's Avatar
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Join Date: May 2004
Location: Hells half acre (Great Falls, Virginia)
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Quote:
Originally Posted by 83-240D
perhaps new brushes from ************** with a repair manual included.
I doubt its brushes....it could be either the evil vacuum servo failed or the bearings in the blower are shot....

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