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Dynasty 200DX help5/9

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  • Dynasty 200DX help5/9

    Hello to all!
    I finally had a chance to power up a welder I purchased and the display flashes between a 5 and 9 help code. All boards look perfect from a visual inspection - no burn marks, bulging caps or anything out of the ordinary. The fan comes on after it boots through and the codes display.
    Serial# MA170440L
    Any help is greatly appreciated!
    Thank you!
    Last edited by timbertom; 03-31-2021, 09:34 PM.

  • #2
    I'm not familiar with the model, but the manual says that's a heat sink problem....code 5 is that it has overheated, and code 9 is that it has a short in the thermal protection circuit. Sounds like a trip to the service center.

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    • #3
      You’re correct. I’m hoping to avoid the service center (sounds expensive) and finger this one out.

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      • #4
        Check RC3 pin 1 & 2 should read 1000 ohms at room temp this is a thermistor.

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