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No welding current
Power source is switched on, indicator for the selected welding process is lit, overtemper-
ature indicator lit
Cause: Duty cycle exceeded - power source overloaded - fan running
Remedy: Keep within duty cycle
Cause: Thermostatic automatic circuit breaker has been tripped
Remedy: Wait until the power source comes back on automatically at the end of the
cooling phase
Cause: The fan in the power source is faulty
Remedy: Contact After-Sales Service
Cause: Insufficient cooling air intake
Remedy: Ensure adequate air supply
Cause: Air filter is dirty
Remedy: Clean air filter
No welding current
Power source is switched on, indicator for the selected welding process is lit, overtemper-
ature indicator lit
Cause: Power module error
Remedy: Turn off the power source, then turn it on again.
If the error occurs frequently, contact After-Sales Service
Faulty operation Poor ignition properties during MMA welding
Cause: Incorrect welding process selected
Remedy: Select "MMA welding" or "MMA welding with Cel electrode" process
Cause: Starting current too low; electrode sticking during ignition
Remedy: Increase starting current using HotStart function
Cause: Starting current too high; electrode consumed too quickly during ignition or is
generating a lot of spatter
Remedy: Reduce starting current using SoftStart function
In some cases, arc breaks during welding
Cause: Electrode (e.g. grooved electrode) voltage too high
Remedy: If possible, use alternative electrode or a power source with more welding
power
Cause: Break voltage (Uco) set too low
Remedy: Increase break voltage (Uco) in Setup menu
Rod electrode tends to stick
Cause: Value of arc-force dynamic parameter (MMA welding) set too low
Remedy: Increase value of arc-force dynamic parameter
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