Bosch Professional GBH 18V-34 CF Original Instructions Manual page 24

Temperature indicator (29) Meaning/cause
Red Operating temperature of the battery or the
power tool has been exceeded, power tool
switches itself off as a precautionary measure
Power tool status Meaning/cause
indicator (27)
Green Status OK
Yellow Critical temperature has been reached or re-
chargeable battery is almost empty
Red Power tool has overheated or rechargeable
battery is empty
Red Lock-on button pressed in "hammer drilling"
operating mode
Combi-switch activated during operation
Motor is jammed, battery too weak
General error
Flashing red Rapid shut-off is triggered
– In combination with the
rapid shut-off
indicator (24)
Flashing blue Power tool is establishing a connection to a
mobile device or settings are being trans-
ferred
Smartphone symbol (28) Meaning/cause
− Further information can be found under the "Power tool status" display on a mobile device if it
is connected via Bluetooth® wireless technology.
Selecting the working mode
Working mode (25) indic- Functions
ator
Auto working mode: Fast, controlled run-up up to maximum power
lights up
– "Hammer drilling" operating mode (Electronic Precision Control soft start): Fast, con-
– Rapid Shut-off (KickBack Control) active
– "Chiselling" operating mode (Adaptive Speed Control soft start): Fast, controlled run-up up
Soft working mode: Reduced power for processing sensitive materials
lights up
– "Hammer drilling" operating mode (Electronic Precision Control soft start): Slow, strictly
– Rapid shut-off (KickBack Control) with an even more sensitive setup
– "Chiselling" operating mode (Adaptive Speed Control soft start): Slow, strictly controlled
Bosch Power Tools
trolled run-up up to maximum power
to maximum power
controlled run-up up to reduced, low power
run-up up to reduced power
Solution
Leave the power tool to cool down or replace
overheated battery
Solution
–
Run the power tool at no load and allow it to
cool down, or replace or charge the battery
soon
Allow the power tool to cool down, or replace
or charge the battery
Press the lock-on button again
Turn the power tool off and on again
Charge the battery or use the recommended
battery type
– Turn the power tool off and on again, or re-
move the battery and reinsert it
If the error persists:
– Send the power tool to the after-sales ser-
vice
Turn the power tool off and on again
–
1 609 92A 7SJ | (23.06.2022)
English | 23