49
Troubleshooting
Error message Remedy
No pre-programmed program has been
selected
Select a pre-programmed programno | PrG
The digital welding machines are equipped with an intelligent safety system. This means that apart from the coolant-pump fuse,
there was no need for any melting-type fuses at all. After a possible malfunction or error has been remedied, the welding machine
can be put back into normal operation again without any fuses having to be changed.
Warning! Before opening up the welding machine, switch it off, unplug it from the mains and put up a warning sign to stop
anybody inadvertently switching it back on again. If necessary, discharge the electrolytic capacitors.
Error messages on the displays
Over-temperature in secondary circuit of
welding machine
Allow the machine to cool downtS1 | xxx, tS2 | xxx, tS3 | xxx
(xxx stands for a temp. indication)
tP1 | xxx, tP2 | xxx, tP3 | xxx
tP4 | xxx, tP5 | xxx, tP6 | xxx
(xxx stands for a temp. indication)
Over-temperature in primary circuit of
welding machine
Allow the machine to cool down
N.B.! If any other error message appears on the displays, which is not described here, then the fault is one that can only be put
right by a service technician. Make a note of the error message shown in the display, and of the serial number and configuration
of the power source, and get in touch with our after-sales service.
Cause
EFd | 8.1
tSt | xxx
(xxx stands for a temp. indication)
Err | 049
Err | 051
Err | 052
EFd | 9.1
EFd | 9.2
Fault in the wirefeed system Arrange the hosepack in as straight a
line as possible; check that there are no
kinks or dirt in the inner liner; check the
contact pressure in the 2-roller (or 4-
roller) drive
Over-temperature in the control circuit Allow the machine to cool down
Phase failure Check mains fuse protection, mains
supply lead and mains plug
Mains undervoltage: Mains voltage has
dropped below the tolerance range (+/-
15%)
Check mains voltage
Mains overvoltage: Mains voltage has
risen above the tolerance range (+/- 15%)
Check mains voltage
External supply voltage: Supply voltage
has dropped below the tolerance range
Check external supply voltage
External supply voltage: Supply voltage
has risen above the tolerance range
Check external supply voltage
Motor of drive unit is stuck or defective Check / change motor of drive unit
r-Adjustment: There is no contact with
the workpiece
Connect up the earth cable; ensure a
tight connection between the contact
tube and the workpiece
r | E30
r-Adjustment: Procedure has been inter-
rupted by repeated pressing of the torch
trigger
Ensure a tight connection between the
contact tube and the workpiece - press
the torch trigger once only
r | E31
r-Adjustment: Poor contact between the
contact tube and the workpiece
Clean the point of contact, tighten the
contact tube, check the earthing con-
nection
r | E33, r | E34
Couple wire rolls and press torch key to
repeat process
Press torch key to repeat process
Press torch key to repeat process
PPU adjustment: step 2 (St2) started in
decoupled condition
Err | E11
PPU adjustment: quick stop activated by
pressing torch key
Err | E16
PPU adjustment: wrong measurementErr | Et0
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