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Old 02-15-2018, 06:26 PM
SD Blue SD Blue is offline
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Join Date: Jun 2004
Location: West of Ft. Worth. TX
Posts: 4,186
Check for +12vdc at pin 12 of the Blower Speed Controller. (It's located to the left of the blower motor.)
Also, to rule out any Temp. Controller input and Cold Engine Lockout Switch, place the Pushbutton Controller to the Defrost Mode.
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Sam

84 300SD 350K+ miles ( Blue Belle )
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