DeLonghi PRIMADONNA CLASS EVO ECAM550.65 Service Manual page 14

6.2. DISPLAY TEST MODE
- After having entered the SELECT TEST MODE function with the above steps, access the DISPLAY
TEST MODE through the dedicated button:
- Press each button to check the corresponding reaction shown by means of a dedicated message
(BUTTON 1, BUTTON 2, etc.) on the display:
IMPORTANT NOTICE: The execution of the DISPLAY TEST MODE will reset the language setting and will
put the appliance back to first use mode, thus forcing it to ask again for water circuit filling.
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Doc. Nr.: DSDL_21012_A