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  1. #1
    Join Date
    Dec 2005
    Location
    Michigan
    Posts
    26

    Default 330 AB/P Foot pedal

    I have a 330 AB/P and all of the sudden the foot pedal doesn't control amps its all or nothing as soon as you press the pedal if you try to set amps lower it doesn't want to start. Any Ideas or troubleshooting help. The foot pedal is a RFC-23A.

  2. #2
    Join Date
    Dec 2007
    Location
    PA
    Posts
    355

    Default

    Seems like there is a broken wire to the rheostat.
    From your description, your switch still works.

    This remote uses what I call "toasters" as the current control.
    This is a high power or wattage ceramic element so the newer potentiometer based remotes will not work as a substitute.

    My suggestion is to open the case and check wire continuity and connections visually first and then with an ohmmeter.
    Also check continuity from the remote connections to the connectors.

    www.millerwelds.com/om/o826h_mil.pdf

    Good luck
    Thermal Arc GTSW400, Airco Heliwelder II, Miller Dynasty 350, Hypertherm 1000, oxy-fuel setup, metal cutting bandsaw, air compressor, drill press, etc.:

    Call me the "Clouseau" of welding !

  3. #3
    Join Date
    Aug 2010
    Location
    Los Angeles
    Posts
    1,167

    Default

    Many times the wires in the cord exiting the pedal fray and break. Check continuity there too.
    Nothing welded, Nothing gained

    Miller Dynasty700DX
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  4. #4
    Join Date
    Dec 2005
    Location
    Michigan
    Posts
    26

    Default This should give you guys a chuckle for the day

    Its fixed I didn't notice that the upper switch for the remote was bumped to the off position. I'm getting old I guess didn't see it until I unplugged the the foot pedal as the plug and cord hang over it thanks for the replies.

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