HBS CDi 1502 - Troubleshooting: Error Displays and Gun Issues

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50
14 Troubleshooting
Fault Possible cause Fault localisation Fault remedy Performance
Continuously red
display:
Er
Discharge relay con-
trol unable
Switch off stud welding
unit; then switch on
after some seconds; if
the stud welding unit is
still locked, switch off
the stud welding unit -
inform the reponsible
service department
If no mentioned ac-
tions are successful,
please contact our
service department
Trained personnel
Continuously red
display:
E t
Discharge transistor
defective
Switch off stud welding
unit; then switch on
after some seconds; if
the stud welding unit is
still locked, switch off
the stud welding unit -
inform the reponsible
service department
If no mentioned ac-
tions are successful,
please contact our
service department
Trained personnel
Continuously red
display:
Elt
Charging time of
capacitor battery too
long
Switch off stud welding
unit; then switch on
after some seconds; if
the stud welding unit is
still locked, switch off
the stud welding unit -
inform the reponsible
service department
If no mentioned ac-
tions are successful,
please contact our
service department
Trained personnel
Continuously red
display:
EtY
Main thyristor or con-
trol defective
Switch off stud welding
unit; then switch on
after some seconds; if
the stud welding unit is
still locked, switch off
the stud welding unit -
inform the reponsible
service department
If no mentioned ac-
tions are successful,
please contact our
service department
Trained personnel
Continuously red
display:
hot
Charging error Wait with switched on
stud welding unit until
the p.c. board charge
control has cooled
down. If the stud welding
unit then still displays
hot, inform the respon-
sible service department
If no mentioned ac-
tions are successful,
please contact our
service department
Trained personnel