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  • Justin00Stang
    replied
    I can weld for 10-15min at 150amps and the fans never come on. The first time they did I was a little confused as to what the noise was.

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  • TurboJoe
    replied
    thanks! ALOT!..

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  • paulrbrown
    replied
    Right On Andy, I had my 250 for a month before I tripped the fan, Scared me because I had become used to not hearing it, but it was comforting knowing it does work as advertised, you have a great machine there, and it stick welds great also....Paul

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  • ASKANDY
    replied
    This unit IS a fan on demand unit. As the unit gets hot it will turn on. It has nothing to do with striking the arc like Lincoln's. Ours will only run when needed. The Lincoln runs even when it really doesn't need to. Ours runs off thermostats and the Lincoln units run off a timer. Both do the job of cooling just fine, ours just doesn't use as much power or suck in as much dirt.

    Weld on!

    Andy

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  • Tanner
    replied
    Well, the fan will only run when it gets too hot. So I guess at 100% duty cycle it won't get hot.

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  • TurboJoe
    replied
    so..the fan does not work till the machine gets hot?..I also have a lincoln tig 275 and the fan works like glockdok says..this is my first miller tig machine and I was curious about the fan ..thanks

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  • Tanner
    replied
    Well, the duty cycle at 150amps is 100%,so the fan wouldn't go on if you're not overheating it at 100% duty cycle.

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  • glockdoc
    replied
    I've been using a Lincoln Tig 275 which is comparable to your unit. It has fan on demand, when welding begins the fan turns on and will run until about 10min after welding stops. i would think the Miller would work in a similar way, worth looking into before doing much more welding. Heat is one of the biggest enemies of eletrical components. I am sure someone will know more about the 250.

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  • TurboJoe
    started a topic syncrowave 250

    syncrowave 250

    hello..I have just purchased a syncrowave 250(# kj270944)...my question is ...when does the fan in the machine run?...the water cooler is working..but after welding @80-150 amps in a/c for 15-20 min..the fan does not come on..I've never even herd it run...I pulled the panel off and checked the fan..it turns freely and seems to be wired..I dont want to over heat the machine..this machine was 3 yrs old..but brand new in the box!..my miller dealer gave me a 90 day warranty..and i asked them about the fan..but I have not herd from them! thank you joe
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