Hobart Welder Error Code Err 2: How to Fix It

Q: How long should I wait after Err 2 appears before welding again?

Wait at least 15-30 minutes for the welder to cool completely. The thermal protection switch must reset before the error clears and normal operation resumes.

Q: What is duty cycle and how does it affect Err 2?

Duty cycle is the percentage of time a welder can operate at a given amperage within a 10-minute period. Exceeding this causes overheating and triggers Err 2. For example, 40% duty cycle means 4 minutes welding, 6 minutes rest.

Q: Can I prevent Hobart Err 2 from happening?

Yes, prevent Err 2 by following duty cycle limits, ensuring proper ventilation around the welder, keeping air vents clean, and taking regular breaks during extended welding sessions.

Q: Is it safe to continue welding after Err 2 clears?

Yes, it's safe to resume welding once the error clears and the unit has cooled down. However, modify your welding schedule to stay within duty cycle limits to prevent recurrence.

Q: Why does my Hobart welder overheat faster than it used to?

Common causes include clogged air vents, failed cooling fans, dirty internal components, operating in high ambient temperatures, or aging thermal protection components that may need professional service.

Abstract

Hobart welder Error Code Err 2 appears when thermal protection activates because the duty cycle has been exceeded. This safety feature prevents damage from overheating by shutting down the welder when it gets too hot from continuous use.