26Door alarmCauseAn appliance door has not been closed properlyor has been open too long.Remedial actionClose the door. The display goes out.Sensor faultCauseA technical defect is possible.Remedial actionCall customer service.Low voltageThe display light has gone out.CauseThe incoming mains voltage has dropped belowthe permitted limit value.Remedial actionButtons cannot be pressed. When the mains voltagereaches the stipulated value again, the warning messagegoes out. If the warning message is prolonged, informyour power supply company.Water fiIterExchanging the filterIf the following display is indicated:The age of the filter is close to the maximum life time.Order a new water filter.To purchase an replacement water filter contact your localdealer or call 1–800–578–6890.If the following display is indicated:The filter has to be changed immediately.m WARNING mTo avoid serious illness or death, do not use waterthat is microbiological or chemical unsafe or of unknowquality without adequate disinfection or other treatmentbefore or after use of filter.m CAUTION m– After installing a new water filter always discard the iceproduction of the first 24 hours after swichting on theicemaker.– If ice has not been used for a prolonged time, discardall ice cubes in the bin and discard the ice productionof the next 24 hours.– If appliance or ice was not actively used for severalweeks or months or ice cubes have an unpleasanttaste or odor, change water filter.– Air trapped in system may cause water and cartridgeto eject. Use caution when removing.– The filter should be changed at least every 6 months.