# User interface (see figure I)

The user interface (19) is used to select the working mode and to indicate the status of the power tool.

## Status indications

Battery charge indicator (user interface) (23) | Meaning/cause | Solution
--- | --- | ---
Green (2 to 5 bars) | Battery charged | –
Yellow (1 bar) | Battery almost empty | Replace or charge battery soon
Red (1 bar) | Battery empty | Replace or charge battery

Temperature indicator (29) | Meaning/cause | Solution
--- | --- | ---
Yellow | Operating temperature of the battery or the power tool has significantly increased, performance is reduced | Leave the power tool to cool down or replace overheated battery
Red | Operating temperature of the battery or the power tool has been exceeded, power tool switches itself off as a precautionary measure | Leave the power tool to cool down or replace overheated battery

Power tool status indicator (27) | Meaning/cause | Solution
--- | --- | ---
Green | Status OK | –
Yellow | Critical temperature has been reached or rechargeable battery is almost empty | Run the power tool at no load and allow it to cool down, or replace or charge the battery soon
Red | Power tool has overheated or rechargeable battery is empty | Allow the power tool to cool down, or replace or charge the battery
Red | Lock-on button pressed in "hammer drilling" operating mode | Press the lock-on button again
Combi-switch activated during operation | Turn the power tool off and on again
Motor is jammed, battery too weak | Charge the battery or use the recommended battery type
General error | Turn the power tool off and on again, or remove the battery and reinsert it If the error persists: Send the power tool to the after-sales service
Flashing red In combination with the rapid shut-off indicator (24) | Rapid shut-off is triggered | Turn the power tool off and on again
Flashing blue | Power tool is establishing a connection to a mobile device or settings are being transferred | –

Smartphone symbol (28) | Meaning/cause
--- | ---
– | Further information can be found on a mobile device if it is connected via Bluetooth® wireless technology.

## Selecting the working mode

Working mode (25) indicator | Functions
--- | ---
lights up | Auto working mode: Fast, controlled run-up up to maximum power "Hammer drilling" operating mode (Electronic Precision Control soft start): Fast, controlled run-up up to maximum power Rapid Shut-off (KickBack Control) active "Chiselling" operating mode (Adaptive Speed Control soft start): Fast, controlled run-up up to maximum power
lights up | Soft working mode: Reduced power for processing sensitive materials "Hammer drilling" operating mode (Electronic Precision Control soft start): Slow, strictly controlled run-up up to reduced, low power Rapid shut-off (KickBack Control) with an even more sensitive setup "Chiselling" operating mode (Adaptive Speed Control soft start): Slow, strictly controlled run-up up to reduced power
lights up | Favourite working mode: Individual configuration via smartphone app The following settings are pre-programmed: "Hammer drilling" operating mode (Electronic Precision Control soft start): Fastest possible run-up up to maximum power Rapid Shut-off (KickBack Control) active "Chiselling" operating mode (Adaptive Speed Control soft start): Deactivated, fastest possible run-up up to maximum power