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Wire to AC: What is the little square thingy on the electrical wire to AC clutch? 200 1986

posted by  someone claiming to be Cabbie2169 on  Thu Aug 5 01:48 CST 2004 [RELATED]

What is the little square electrical thingy on the wire. I just put a new compressor on my '86 and it didn't have the little square elecrical thingy in the picture. Do I need this part in order to get the AC switch on the dash to work??
Cabbie2169








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    Wire to AC: What is the little square thingy on the electrical wire to AC clutch? 200 1986

    posted by  mcduck on  Thu Aug 5 02:44 CST 2004
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    last visit: Sun Sep 9 11:47 CST 2012
    [RELATED]

    It's a diode to limit the induced voltage when the clutch is de-energised; it's not absolutely necessary, but it makes the switch contacts last longer.
    --
    Jim McDonald








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      Wire to AC: What is the little square thingy on the electrical wire to AC clutch? 200 1986

      posted by  someone claiming to be Cabbie2169 on  Thu Aug 5 05:08 CST 2004 [RELATED]

      Cool. Diode.
      By the way, do you know how the AC knob works? For some reason, I can't get it to electrically engage the compressor. What are the connections to the knob? (there are several) I think I may have gotten something unplugged when I replaced the blower motor last week. I noted that one wire from the AC switch is a temperature sensing wire attached to the outlet of the evaporator. I have a '86 240 by the way.
      Thanks,
      Cabbie2169







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