I have a Bosch WTA4400 that is 6 years old and has just started making the most insane screaming/squealing noise during operation. After taking the covers off and moving the drum, the sound seems to be coming from the rear drum bearing area. Does this need to be replaced or can it be lubricated and/or serviced in some way? I've seen conflicting advice.
Does anyone have the service manual for this dryer? I have the exploded diagrams from the website, but am leery of taking the whole thing apart without some guide.