What should I do if the machine overheats and stops welding?

If the unit overheats, welding output stops, a help message is displayed on the voltmeter/ammeter, and the cooling fan begins to run. You should wait 15 minutes for the unit to cool down, then reduce the welding current, voltage, or duty cycle before resuming welding. Exceeding the duty cycle can damage the machine or torch and voids the warranty. (Page 15)