DeLonghi BCO90 Owner Manual - Page 10

• Turn the machine on and position the Vario System selector to the "LIGHT" position; • After a few minutes, the hot vinegar will begin to flow, through the filter holder, into the coffee pot. Release some steam every so often by turning the steam release knob. • When the all of the solution has gone through the machine, turn off the appliance and let it cool down. • Repeat these operations at least two times using clean water instead of vinegar in order to remove every trace of vinegar left in the circuits. The drip coffee machine filter must be decalcified every 90 cycles. The lime removal can be done by using the special lime remover solvents made for drip coffee machines found on the market. Alternatively, white wine vinegar can be used, following this procedure: • Pour two cups of white wine vinegar and three cups of water into the tank. Insert the tank into the machine. • Place the coffee pot onto the hot plate and the filter holder on this without coffee; • Press the ON/OFF drip coffee switch, percolate the equivalent of a cup of the solution and then turn off the appliance. • Allow the vinegar to sit in the machine for an hour; • Turn the machine back on and allow the rest of the solution to percolate through the circuits; • To rinse the appliance, operate the machine with plain water and without using ground coffee at least 3 more times (3 full tanks of water). The repairs of the coffee machine due to maintenance operations that haven't been carried out, such as lime removal etc. will not be covered by warranty. 10