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Discussion in 'Electronic Repair' started by mbhelect, Nov 30, 2003.

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  1. mbhelect

    mbhelect Guest

    I'm trying to repair a Weller soldering station model # EC 1002.It has an ic
    marked weller 185 9307 also a xistor marked L4004f91.Can anyone tell me what
    these are and if there's a replacement for them?Any help would be greatly

  2. BOB URZ

    BOB URZ Guest

    Basically, your choice is to replace the control board.
    Sometimes, you can find them new or used on Ebay.
    Are you sure the control board is bad and that the pencil is

  3. Tweetldee

    Tweetldee Guest

    Don't know about the 185 9307 part, but the L4004F91 part would appear to be
    a Teccor L4004 Triac. Go to their web site at and search for
    that part number.

    Tweetldee at att dot net (Just subsitute the appropriate characters in the

    Never take a laxative and a sleeping pill at the same time!!
  4. BOB URZ

    BOB URZ Guest

    Check this out to see if its the same.
    The price is right.

  5. mbhelect

    mbhelect Guest

    Bob i'm sure the pencil is good because i have 2 units and it works great on
    the other one.

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