Hkoenig expro980 Manuel D'instructions page 5

removing filter holder assembly to brew another cup of
coffee, make sure the coffee machine is in standby
condition. If you want to add more water into the water tank,
press the power button and the four indicators extinguish
to ensure that the power of the product is in off condition.
Warning:
Do not touch the top cover of the machine after the
machine has been working for a long time so as to prevent
burns.