Troubleshooting - strapex STB 71 Operating Instructions Manual

6.8

Troubleshooting

If certain errors occur, the background lighting of the operating panel and the fault display (symbol +
code) illuminate, and an acoustic signal sounds.
If the error is still pending (is not reset automatically), acknowledge by removing / inserting the battery.
Display / state
Operating panel does not
react +
Display remains dark.
E11, red display +
pulsating (long)
Symbol flashes
E20, red display +
pulsating (long)
Symbol flashes &
Symbols & flashing ●
E24, red display +
pulsating (long)
Symbol flashes
E25, red display +
pulsating (long).
Symbols & flashing
E27 (E23), red display
+ pulsating (long)
Symbol flashes
E33, red display +
pulsating (long)
Symbol
E37, orange display +
pulsating (medium)
Symbol
E50/51 orange display +
pulsating (medium)
Symbol
E57 orange display +
pulsating (medium)
Tension force display
flashes.
E55/56 orange display +
pulsating (medium)
Symbols &
In the case of other error numbers not described here, please contact the the local service center.
If the error cannot be rectified by applying the measures described above, please contact the local
service center!
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ENGLISH
Probable cause
● Button lock is switched on.
● Battery faulty / fully discharged.
● Battery not properly inserted.
● Inserted battery not permitted
(wrong battery).
● Battery too hot (> 60°C/140°F).
Battery temperature too low.
● Battery not properly inserted.
● Wrong battery.
● Battery not properly inserted.
● Temperature sensor faulty.
● Battery undervoltage limits
reached.
● Battery empty.
● Electronics overtemperature.
● Controller too hot.
● Tool jams during welding pro-
cess, dirty welding mechanism or
foreign body in tool.
● Aborting of welding or cooling
process by lifting the rocker lever.
● Strap slipped or broken.
● Aborting of tensioning process.
● Performance limitation or time
out.
STRAPEX STB 71/73/75
Remedy / Corrective action
► Switch off button lock: see Section
4.6.
► Charge/replace battery.
► Check whether battery is complete-
ly inserted and unlocking device
engaged.
► Insert correct battery.
► Allow battery to cool.
► Charge battery, replace if neces-
sary.
► At a higher battery temperature
it recovers by itself. Work possible.
Max. strap tension is not reached.
► Insert battery properly.
► Charge battery, replace if neces-
sary.
► Insert battery properly.
► Replace if necessary.
► Charge battery, replace if neces-
sary.
► Allow tool to cool.
► Clean welding mechanism.
► Repeat strapping.
► Reinsert strap.
► Check: Tension force, dirty strap,
right strap and state of tension
wheel / tooth plate.
► Repeat tensioning.
V 03.17