The detergent cartridge for compartment 1 (TwinDos Whites) or the detergent cartridge for compartment 2 (TwinDos Colours) is empty.
Prepare the new cartridge:
 
- Remove the cover cap from the cartridge. - or 
 
- Remove the film seal from the cartridge completely. 
Replace the detergent cartridge:
- Switch on the washing machine. 
 
- To release the lock, press the yellow button above the cartridge (1). 
- Pull out the detergent cartridge (2). 
- Insert a new cartridge. 
- Touch the flashing sensor control 
The counter is set to 0.

