RTO Welding Tools - Recent Questions, Troubleshooting & Support


There is a resettable breaker inside the machine that cuts off power to the plasmahead when tripped. Check that and make sure the head is secore to cable and cable is secure to machine.

If it still fails to function check the coil in the contactor to make sure it has not burned out. Also check the pressure switch to make sure it closes contacts to make the circuit when the unit is pressurized If switch is not functional the head will not operate. Also check gas solenoid or solenoids to make sure they do not have burned out coils as well. An Ohmmeter should show about 2000 ohms give or take some. The main contactor winding also. It may be the main contactor needs replacement- a loose power connection can lead to burned contacts. So if you hear the machine click when you press the trigger, but no power to head, and all the other items mentioned still leaves you with no power at the head, that main contactor is the likely culprit.

If IGBT's had failed- they would blow apart part of their plastic case.So a quick visual is usually adequate for those.

RTO Welding... | Answered on Sep 27, 2012


If it has been used a fair bit then probably just need a new tip. Can pick them up cheap enough from Maplin etc.

RTO 100 Watt... | Answered on Aug 02, 2012


Hi:
Esab's machines are the best for production & maintenance shops. It is worth buying. You can find parts and order them at our web site.http://www.praxairdirect.com/webapp/wcs/stores/servlet/TopCategories1_10152_10051_-1

Regards,

RTO Esab Power... | Answered on Sep 30, 2011

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