Philips HD5720/30 Service Manual page 9

REPAIR INSTRUCTIONS
* When powering the Brewing heater in the system via the service test mode be warned that you not power the heater
!
too long, the software is not protecting the heater in this state!!
** When the Steam knob is (fully) open the Brewing heater, Valve, Pump and Grinder will not operate, close in those
steps the steam knob!!!
To leave the service/test mode unplug the appliance from the mains.
1. Disconnect the appliance from mains.
2. Press simultaneously
3. Connect the appliance to mains.
4. If above steps succeeded the display will show the following message "DISPLAY TEST MODE"
In the display test mode it is possible to check if the menu buttons are recognized by the software.
For instance pressing the MENU button the display will show Button 1, if you press the
Button 2 pressed etc.!
If you turn the steam knob fully open the message "KNOB IS OPEN" appears on the display.
In this manner it is possible to check if the buttons are recognized by the software.
To leave the service/test mode unplug the appliance from the mains or wait 45 seconds without pressing any button.
!
When powered again the appliance must be fully installed again!
PUTTING THE APPLIANCE INTO DISPLAY TEST MODE *
(Factory Virgin mode)
MENU OK
and Coffee buttons.
OFF
ON
button, display will show
HD5720/30
9-23