Troubleshooting PLB40
12
7 Troubleshooting
Problem Cause Remedy
The battery pack does not
start/function when pressing
the power button.
The battery pack has shut
down due to overtempera-
ture (> 65 °C).
Connect the AC/DC char-
ger to the battery pack.
If the battery pack does not
start up, press the reset
button and hold it until for a
few seconds.
The battery is defective. Contact a service center.
The display shows the
warning symbol and the
low / high temperature sym-
bol flashes. An error sound is
continuously beeping during
charging.
The ambient temperature for
charging the device is too
low / high.
Stop charging the device.
Turn the device off. Wait until
the ambient temperature
comes to a permitted value
(chapter “Technical data” on
page 15).
The display shows the
warning symbol and the
low / high temperature sym-
bol flashes. The device
beeps for 15 seconds and
then switches off automati-
cally during discharging.
The ambient temperature for
discharging the device is too
low / high.
Stop discharging the device.
Turn the device off. Wait until
the ambient temperature
comes to a permitted value
(chapter “Technical data” on
page 15).
The display shows the warn-
ing symbol and the fuse
blown symbol flashes. An
error sound is continuously
beeping for 30 seconds.
The DC output fuse has
blown. Additionally the DC
symbol flashes in the display.
Turn the device off.
Change the DC fuse (chapter
“Replacing fuses” on
page 11).
The 2-PIN fuse has blown.
Additionally the 2-PIN
symbol flashes in the display.
Turn the device off.
Change the 2-PIN fuse (chap-
ter “Replacing fuses” on
page 11).
An error sound is continu-
ously beeping (above 25 V).
until pulling off the charger or
fault release.
The input voltage of the char-
ger is wrong.
Turn the charger off. Connect
a charger with the standard
charge voltage (chapter
“Technical data” on
page 15).
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