User interface (see figure E)
The user interface (15) is used to select the working mode and to indicate the status of the power tool.
Status indications
| Battery charge indicator (user interface) (16) | 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 (22) | 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 (20) | 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 | 
 If the error persists: 
 | |
| Flashing red 
 | 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 (21) | 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 (18) indicator | Functions | 
|---|---|
| 
 | Auto working mode: Fast, controlled run-up up to maximum power 
 | 
| 
 | Soft working mode: Reduced power for processing sensitive materials 
 | 
| 
 | Favourite working mode: Individual configuration via smartphone app The following settings are pre-programmed: 
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