Troubleshooting for input voltage faults
A flashing Power ON Light Emitting Diode (LED) can identify a problem with the input voltage.
Fault codes and fault LEDs
| Fault code | Fault LEDs | Torch LED | Description | Stops the system from operating? |
|---|---|---|---|---|
| None |
Flashes 
ON |
Yellow |
An Alternating Current (AC) input voltage phase loss occurred. This is applicable only to 3-phase models. | Yes. A cold restart is necessary. |
| None |
Flashes |
Yellow |
The AC input voltage is too low (>10% less than the rated voltage for 1-phase models or >15% less than the rated voltage for 3-phase models) or too high (>10% more than the rated voltage for 1-phase models or >15% more than the rated voltage for 3-phase models). | Yes. A cold restart is necessary. |
Examine the incoming line voltage
- If applicable, disconnect the system from generator power.
-
What fault LED do you see?
If you see this fault LED... Do these steps... The Power ON LED flashes and the System Fault LED is illuminated. Have an electrical technician examine all input phases, fuses, and breakers for correct voltage (phase-to-phase and phase-to-ground) at the power source and at the plasma power supply. The Power ON LED flashes. Have an electrical technician examine the line and increase or decrease the voltage. - If you continue to see the same fault condition, speak to your distributor or authorized repair facility.