Thermal Arc: Replacement encoder/dial/knob for Pro-wave 185TSW
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  1. #1
    Join Date
    May 2013

    Thermal Arc: Replacement encoder/dial/knob for Pro-wave 185TSW

    I was welding on a hydraulic ram when it tipped over and fell on my Thermal Arc Prowave 185TSW and broke the multifunction knob off the front of the machine. It broke the shaft of the knob, not the pot/encoder on the board so I can still stick what's left of the knob into the hole to adjust settings but I'm worried that I'll eventually lose the knob and then be stuck with those settings. I contacted ESAB about a replacement knob but they say it's NLA. Does anyone know of a source for Thermal Arc parts? Alternatively, are there any "modern" machines that have a compatible multifunction dial that could be soldered in place of my broken knob/dial? ESAB says no, but I find it hard to believe this dial was manufactured solely for the Thermal Arc 185. Surely they've been used on other devices (not just welders). If someone knows the supplier of these dials/knobs, hopefully I can source a replacement direct from the supplier.

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  2. #2
    Join Date
    Nov 2016
    New Hampshire

    Re: Thermal Arc: Replacement encoder/dial/knob for Pro-wave 185TSW

    Do a google search for Sanrex. I believe you will find they were the manufacturer of your machine and that they are selling similar machines under the Sanrex name. They may be able to help you out.

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