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I have volt230 at board but not when i plug in to contactor

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  • Thomas Woodburn
    Thomas Woodburn Dec 24, 2016

    You can find a service manual i believe on This gives detailed trouble shooting on electrical problems. What i saw, unlike airconditioners, is all your safety switches are high voltage. This means that you likely have 230 leaving the board its just not making it to the contactor because one of your safety switches is tripped. (Pressure/thermal etc.) You can bypass every switch in the circuit to pin point which one it is but dont recommend using machine until the problem is fixed. Test continuity through all switches or find where the voltage stops. Good luck



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You have to narrow further. 230 in to board, 230 out of board with no contactor, 230 to the contactor with no load, 230 thru contactor with a load. Likely the board, not sure what you are using the contactor for. If its a heater than you possibly have a bad limit switch or bad element.

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Based on your description there should be 2 contactors. One is the contactor that controls power to the welder primary winding, this one should be quite large compared to the other one, the other controls the 24 volt (most common) supply to the wire feed speed control board and gas solenoid. If you do have 2 of these contactors, the 24 volt contactor may supply the control current to the larger contactor..

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