What is the reason why the plasma cutting machine is angry but does not cut iron?

The reason why the plasma cutting machine is angry but not cutting iron is the switch problem or the control panel is broken.

Check the handle switch, air valve, air valve control circuit and high frequency arc ignition circuit.

Normal working conditions of plasma cutting machine are as follows:

1, the air pressure must be normal.

2. High frequency discharge is normal.

3. The rectified output voltage is 70V.

4. The incision is normal.

5, handle switch control is normal.