Question about Miller SPECTRUM 375 PLASMA CUTTER 903891 115 230 VOLT

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Cooling Fan When I turn on my 375 miller plasma on it will work ok but the cooling fan will not run. Wherer can I find a schmatic and parts for it.

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  • dumasranch Jan 29, 2009

    It was verry helpful it fixed my problem thankyou

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Go to www.millerwelds.com/products/plasma you will find the info you need there

Posted on Jan 29, 2009

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1 Answer

Cooling fan does not run?


At the main fuse and relay box, check the 30A EGI INJ fuse. If OK, the main relay closes to apply power to the cooling fan relay. Next, check the 30A FAN 1 and FAN 2 fuses.If OK, power is being applied to the fan control module. The PCM processes engine coolant temperature sensor input and sends a signal to the fan control module which, in turn, causes the cooling fan motor to operate. Fan failure could be caused by malfunction of the cooling fan relay, the fan control module, the engine coolant temperature sensor, the cooling fan motor itself, or the PCM

Oct 06, 2012 | 2005 Mazda MPV

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Esab plasma cutter fault light comes on as soon as it is turned on


The cable or cutting head may be damaged. The power connections may be loose, an internal circuit breaker may have failed. If the cooling fan does not come on, check the wiring in the cabinet for damaged wires. Disconnect fan wires- noting where each connected and check to see if the fan burned out- if it did, replace the fan and it chould begin to work correctly. If the fan checks out okay- it will have 2 discrete sets of windings-one for the fan, the other to provide control voltage.Check that board with the rectifiers as a rectifier may have failed or there may be a fuse on the board.

If it were mine, I would check everything under the cabinet after it has been thoroughly blown clean.

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1 Answer

1985 new yorker cooling fan won't operate.


could be a bad coolant tempurature sensor if radiater cooling fan does not work, or a bad relay for fan in fuse box for the fan.. if all is ok ! disconnect fan at the connectors. on the motor side, run a wire from positive on battery, to pos itive fan motor. ground other wire to negative on battery. if the fan works its ok. good-day ! check relay and fuse for the fan first.

Feb 01, 2012 | Dodge Vehicle Parts & Accessories

1 Answer

I have a HP PL4245N plasma HD TV. sometimes while watching it just shuts itself off screen goes black and will not turn back on unless I unplug it wait 20 seconds and plug back. Then it works fine. it...


Hello
I thinks you may be right. All plasma and LCD panel tVs will have cooling fans at the top side. Plasma screens will heat up much more, and if cooling fans stops work, of has damaged, the set will overheat, and awill automatically shut down; because there is a overheat sensor fitted inside it, will sense the heat, and if the set overheats, it will send a signal to the main system control fo the TV; which in turn shut down the whole system. look fans for proper working. If not replace them. OK.

Jul 04, 2011 | HP PL4245N 42 in. HD-Ready Plasma...

1 Answer

How do i check the cooling fan my car is over heating


HOT WIRE COOLING FAN USING JUMPER WIRES TO BATTERY.IF FAN DONT RUN WHEN HOT WIRED FAN MOTOR BAD NEED REPLACING. IF FAN RUN WHEN HOT WIRED. CHECK COOLING FAN FUSE AND RELAY.IF ALL IS GOOD.YOUR ENGINE COOLANT TEMPERATURE SENSOR NOT WORKING.IT CONTROL COOLING FAN AT SET TEMPERATURE IF SENSOR OPEN OR FAULTY THE COOLING FAN WONT TURN ON.CHECK COOLING FAN WIRES FOR DAMAGE.IF ALL STILL CHECK OUT GOOD HAVE VECHICLE SCANNED FOR PCM FAULT.IF IT FAILS NO COOLING FAN WONT TURN ON.

Dec 13, 2010 | Hyundai Elantra Cars & Trucks

1 Answer

Fans will not turn on therefore cause vehicle to overheat


cooling fan will not come on until about 230 degrees, if fans still do not work. check the fuses and relay. if ok then run a wire to fan from battery.on fan side connection, run a wire from battery positive to fan connection. run a wire from negative to ground connection.if fan will not come on it is either bad or the coolant temp, sensor is bad. because this sensor send info to pcm from various running conditions. it is very important that this sensor works. it can cause;
  • Extended crank time when the engine is cold
  • Poor fuel economy
  • Spark knock
  • Lack of engine power
  • Erratic and/or high idle
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  • Engine cooling fan fails to turn on
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    1 Answer

    The microwave shuts off and will not re start until completely cooled down.


    I would suspect that the magnetron is overheating and that the magnetron's thermostat is cutting power until it cools down.

    It may be overheating because the internal cooling fan is not running when you're cooking.

    When I say internal cooling fan, I do not mean the hood vent exhaust fan which you can turn on and off manually.

    I'm instead talking about the internal fan which comes on automatically whenever you microwave.

    It is vital that the cooling fan runs, or the magnetron will soon be destroyed.

    It may also be that your filter is clogged, or your exhaust duct work is clogged.

    FixYa's Web site is currently not notifying us when replies to our Clarification Requests are posted, so please reply directly to me with your full number from the tag on the unit so I can help you with free do-it-yourself tips or an estimate.

    We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

    William E. Miller
    prototech@usa.net
    http://www.microwavedisplay.com

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    3 Answers

    Cooling fan didnt shut off when ignition was turned off


    It is the cooling fan relay,it will be in the fuse/relay box under the hood,on drivers side,or near the fans,if you remove the correct relay,the cooling fans will turn off.Just replace it with a new one from the parts store.

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    1 Answer

    Miller Spectrum 375 problem


    It sounds like you have a problem in the power supply input area. Make sure your voltage select switch is in the correct location. Unplug the unit and switch back and forth between the two positions to clean the contacts. Try again. If still bad check you terminal lug connections on the input lead wires. If still bad please answer these questions.

    Does the power indicator come on at all? Does the fan start?

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    Check the operation of the radiator cooling fan circuit:-
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    2) check/replace the cooling fan control relay,
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