Bohler WF 4000 CLASSIC Instrucciones De Uso página 55

The system fails to come on (green LED off)
Cause No mains voltage at the socket.
Solution Check and repair the electrical system as needed.
Use qualified personnel only.
Cause Faulty plug or cable.
Solution Replace the faulty component.
Contact the nearest service centre to have the sys-
tem repaired.
Cause Line fuse blown.
Solution Replace the faulty component.
Cause Faulty on/off switch.
Solution Replace the faulty component.
Contact the nearest service centre to have the sys-
tem repaired.
Cause Faulty electronics.
Solution Contact the nearest service centre to have the sys-
tem repaired.
No output power (the system does not weld)
Cause Faulty torch trigger button.
Solution Replace the faulty component.
Contact the nearest service centre to have the sys-
tem repaired.
Cause The system has overheated (temperature alarm -
yellow LED on).
Solution Wait for the system to cool down without switching
it off.
Cause Side cover open or faulty door switch.
Solution In order to ensure safe operation the side cover
must be closed while welding.
Replace the faulty component.
Contact the nearest service centre to have the
torch repaired.
Cause Incorrect earth connection.
Solution Earth the system correctly.
Read the paragraph "Installation ".
Cause Mains voltage out of range (yellow LED on).
Solution Bring the mains voltage within the power source
admissible range.
Connect the system correctly.
Read the paragraph "Connections ".
Cause Faulty electronics.
Solution Contact the nearest service centre to have the sys-
tem repaired.
Incorrect output power
Cause Incorrect selection in the welding process or faulty
selector switch.
Solution Select the welding process correctly.
Cause System parameters or functions set incorrectly.
Solution Reset the system and the welding parameters.
Cause Faulty potentiometer/encoder for the adjustment
of the welding current.
Solution Replace the faulty component.
Contact the nearest service centre to have the sys-
tem repaired.
Cause Mains voltage out of range
Solution Connect the system correctly.
Read the paragraph "Connections ".
Cause Input mains phase missing.
Solution Connect the system correctly.
Read the paragraph "Connections ".
Cause Faulty electronics.
Solution Contact the nearest service centre to have the sys-
tem repaired.
Wire feeder fails
Cause Faulty torch trigger button.
Solution Replace the faulty component.
Contact the nearest service centre to have the sys-
tem repaired.
Cause Incorrect or worn rollers
Solution Replace the rollers.
Cause Faulty wire feeder.
Solution Replace the faulty component.
Contact the nearest service centre to have the sys-
tem repaired.
Cause Damaged torch liner.
Solution Replace the faulty component.
Contact the nearest service centre to have the sys-
tem repaired.
Cause No power supply to the wire feeder.
Solution Check the connection to the power source.
Read the paragraph "Connections ".
Contact the nearest service centre to have the sys-
tem repaired.
Cause Tangled wire on the spool.
Solution Untangle the wire or replace the wire spool.
Cause Melted torch nozzle (wire stuck)
Solution Replace the faulty component.
Irregular wire feeding
Cause Faulty torch trigger button.
Solution Replace the faulty component.
Contact the nearest service centre to have the sys-
tem repaired.
Cause Incorrect or worn rolls.
Solution Replace the rolls.
Cause Faulty wire feeder.
Solution Replace the faulty component.
Contact the nearest service centre to have the sys-
tem repaired.
Cause Damaged torch liner.
Solution Replace the faulty component.
Contact the nearest service centre to have the sys-
tem repaired.
Cause Incorrect spindle clutch or misadjusted rolls locking
devices.
Solution Release the clutch.
Increase the rolls locking pressure.
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