FAULT CODES
0740 801 028
- 50 -
© ESAB AB 2017
Code Description
19 Memory error in data memory
This fault will be detected if the information in the battery-backed-up memory has
become corrupted.
Action: This fault corrects itself. Turn off the mains power supply to reset the unit.
Stored data in the current memory section will be lost. If the battery voltage is correct,
and if the fault recurs each time the unit is started, there is a fault in the persistent
memory. Replace the welding data board, 1AP1, in the MMC unit.
26 Program operating fault
Something has prevented the processor from performing its normal tasks in the
program. The program restarts automatically. The current welding process will be
stopped. This fault does not disable any functions.
Action: This fault should not happen. Contact ESAB if the fault yet occurs.
27 Faulty wire configuration
Action: PAB user, check wire and dimension settings.
31 No reply from the display unit
The microprocessor has no contact with the display board.
Action: Check the cabling and connectors between the 1AP1 welding data board
and the 1AP2 display board.
32 No gas flow
External equipment indicates that no gas are flowing.
Action: Check gas flow.
43 High current
The welding power source has measured high current for 0.4 sec and welding is
interrupted.
Action: Check welding power source.
44 Start timeout
If no welding current is detected during the first 10 sec of welding, the welding is
interrupted. The fault code is reset at start of the next welding.
Action: Probably no welding arc, check the connections of welding cables and the
return cable from the workpiece.
45 Wire config error
Error code from external equipment.
Action: Check settings against loaded wire.
46 Stop timeout
Secondary power source failed to acknowledge the commando “Stop welding” over
the CAN bus. Only active at master/slave or tandem welding.
Action: If the fault is persistant, check CAN bus connections and communications.
47 Current overrun
Welding current set to higher value than power sources (master and slave) can
deliver together.
Action: Decrease welding current.
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