Troubleshooting for temperature-related faults
When the Temperature fault Light Emitting Diode (LED) and the System Fault LED both illuminate while the system is ON, the internal temperature of the plasma power supply is too hot or too cold. Hypertherm® recommends that you operate the system only in external temperatures between -10°C – 40°C (14°F – 104°F).
Fault codes and fault LEDs
| Fault code | Fault LEDs | Torch LED | Description | Stops the system from operating? |
|---|---|---|---|---|
| None |
ON 
ON |
Yellow |
The internal temperature of the plasma power supply is too hot or too cold. | Yes. You can continue to use the system when its internal temperature is no longer too hot or too cold. |
Corrective action for temperature faults
- Keep the plasma power supply ON to let the fan decrease the temperature of the internal components.
- If the internal temperature of the plasma power supply gets near -30°C (-22°F), move the system to a warmer location.
- Make sure that there is sufficient air flow around the plasma power supply.
- Make sure that the plasma power supply cover is installed with the louvers in front of the fan.
Correction action in the plasma power supply
- Make sure that the component barrier is correctly installed on the power Printed Circuit Board (PCB) side of the plasma power supply.
- Do the troubleshooting steps in Troubleshooting for fan faults (3-10-n) to do a check of the internal fan.