Clothes dryer manufacturers recommend that you clean out your lint screen vent between dryer loads and inspect your dryer vent ducts weekly for clogged lines. Front loader dryers often display a warning signal when the lint screen needs changing.If your front loader dryer vent is clean of lint but the console displays a check filter warning, the vent duct line is clogged.. Scoop the lint from the filter and discard. If the screen filter feels waxy or sticky, wash the screen in warm soapy water and dry thoroughly. The waxy buildup is formed from fabric softener sheets. If you regularly use these sheets, wash the lint screen periodically.