Please check in what way the light flashes.

Does the on/off button flash rapidly or slowly ? 

Flashes rapidly:

1. Is there enough water in the water reservoir? 
   The water level needs to be above the minimum level. 
   
2. Has the water reservoir been placed correctly? 
   Make sure the water reservoir has been placed correctly. Then check if the coffee machine functions properly, i.e. if the light ring starts to flash slowly.  
   
3. Has the float in the water reservoir got stuck? 
   Empty the water reservoir and shake it a few times to release the float. Clean the water reservoir with hot water and some washing-up liquid.  
    
   
4. Did you place the Coffee machine in a room where the temperature is below 10 degrees Celsius?
   Please note that the Coffee machine does not work in rooms with a temperature below 10 degrees Celsius. Check if the Coffee machine functions normally when it is used in a room with a temperature above 10 degrees Celsius.    
   
   If the above suggestions did not help to solve your problem, please contact the Philips Consumer Care Center in your country. Contact Page 

Flashes slowly:

1. If the on/off light continues to flash slowly for more than 90 seconds, contact the Philips Consumer Care Center. Contact Page