u/BulkHogan54

My tenant removed the dryer lint screen, stuck in a vacuum and lost a knob at the end of the vacuum attachment. Is it in there with the tumbler? Has gravity moved it to a low safe spot? Do I need to disassemble and find it? I can't tell if it is making a sound because I don't use the machine. The dryer is a complicated Whirlpool WHD5090GW0, ( a European-style heat pump dryer sold in relatively low numbers in the U.S, which requires no exhaust vent ).