SOURCE: overcurrent condition in primary IGBT switching circut
This is a very difficult machine to diagnose even for a factory trained person,do not reccomend.
SOURCE: Hi, I have just had power supplied to my Miller DX
That would signify You have a problem with the units main power circuit...the unit will need serviced.
Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/sean_54c3a3dc48a7773c
SOURCE: Miller dynasty dx 300 that began throwing help
The Voltage refered to is the Arc Voltage not the input voltage, for dip transfer the arc voltage needs to be 18-20v for spray transfer try 25-38volts both depending an the WFS setting. arc voltage is set on the voltage control dial. lets know how this turns out.#
Ken
SOURCE: miller dynasty 200 fan not running at all I
If you have power on the input side of the temp sensor and no power out yes you can jumper the temp sensor. You should also be able to test the temp sensor with a match. Un-mount it, then heat it until it clicks and check for continuity. (Remount when complete) If you have continuity with applied heat the problem is not the temp sensor. It could be a fan relay problem.
If your sure you want to bypass normal fan power, I would look for the power source for the fan on the welder's schematic and then run a seperate in-line FUSED power lead to the fan and then ground the other side to the chassis. Make sure the source you choose has enough amperage to power the fan. Some places on the main board if you tap 15VDC you can damage the main board.
Kelly
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