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#1
03-16-2007, 10:51 PM
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'80 nonturbo 300d heater blows only when switched off
The title pretty much says it all.
If I push any button other than the "off" button I get nothing. The controls are situated vertically if that helps. Tore the console apart and can't sort that darn thing out, any advice/?/  is this my next step?
Last edited by whunter; 03-16-2007 at 11:21 PM. Reason: spelling 
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#2
03-17-2007, 12:31 PM
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You have a version of the chrysler auto temp system. Try this web site to diagnose. www.imperialclub.com/repair/lit/master/281/cover.htm
__________________
81 300CD (sold) 1972 280 SEL 4.5 (sold) 1966 250 S 4 spd (sold) 1974 450 SL (sold) 86 BMW 325ES (sold), 1973 280C (sold) 1988 300 SE.
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#3
03-20-2007, 08:48 PM
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Well I checked the amplifier and replaced a couple of blistered resisters to no avail. There is one part in there that seems to have melted, leaving a puddle of hard tanish resin at the base. It is the second piece from the top left if you are holding the unit with the pins at the bottom. I tried unpluging the amp which didnt change a thing (fan still blew on high in the off position alone). The servo dosn't seem to have any cracks in either part. The smaller of the two main parts has a metal body. Is this original equipment? I have access to a parts car but I have no idea of the condition of the parts in question. Still trying. Thank you for the link. --- G-MA
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