Fan Blower { No Heat or Air }

I have a 1976 Mercedes-Benz 450sel.the fan blower for the heat and air does not blow, [ kick on ] just dead.with winter coming that will be a big problem.
snipped-for-privacy@adelphia.net :)
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yes it was a sudden onset. I will try the wiggle of the key ignition and push button panel. thank you

big
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