Black & Decker BDT20WTB Manuel D'instructions page 11

SET UP & USE
FILTER CLEANING
When the filter needs to be cleaned, the filter indicator light will come on (after
approximately 250 hours of use). Remove the filter from the back of the unit by
using your thumbs to press down on the filter tabs directly above the filter.
Clean the filter with warm, soapy water and dry thoroughly before putting back
in place. Once filter is back in the unit, press the FILTER button to reset the filter
indicator.
CAUTION: Do not clean the filter in a dishwasher. Do not operate the
dehumidifier without the included filter in place.
AUTOMATIC DEFROST
When frost builds up on the evaporator coils, the compressor will cycle off
and the fan will continue to run until the frost disappears. When the coils
are completely defrosted, the compressor or fan (depending on model) will
automatically restart and dehumidification will resume.
AUTOMATIC RESTART
In the event of a power interruption such as a power outage or the plug being
disconnected from the outlet, your dehumidifier will automatically restart in
the same setting once power has been restored to the unit. The only functions/
features that will have to be restored manually upon resumption of power are
the timer function and the child lock mode.
Page 11