9 TROUBLESHOOTING
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© ESAB AB 2023
9 TROUBLESHOOTING
Perform these checks and inspections before sending for an authorised service technician.
Check that the mains voltage is disconnected before starting any type of repair action.
Type of fault Corrective action
No arc Check that the mains power supply switch is turned on.
Check that the mains, welding and return cables are correctly connected
Check that the correct current value is set.
Check the mains power supply fuses.
The thermal protection
trips frequently
Make sure that you are not exceeding the rated data for the power
source (i.e. that the unit is not being overloaded).
Check that the ambient temperature is not above the one for the rated
duty cycle 40°C/104°F.
Poor welding performance Check that the welding current supply and return cables are correctly
connected.
Check that the correct current value is set.
Check that the correct welding wires are being used.
Check the main power supply fuses.
The wire feed is slow/stiff
through the wire feed
mechanism
Clean the liners and other mechanical parts of the wire feed mechanism,
using pressurized air.
Clean and adjust the roller pressure as per the table on the decal on the
left side door.
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