Miele T9802 Service Call :(
Well, I have contacted Miele to schedule my first service call for my Miele T9802 dryer. It has recently developed a very loud noise when reverse tumbling. The noise is internal and sounds like a vibration of some sort. It only happens once the unit heats up, so reverse tumbles at the beginning and end of the cycle do not make this noise - only once the unit has heated up. This makes me think it is a metal part or panel that, once it heats up and expands, causes this vibrating noise. Other than this, both units (washer and dryer) are functioning perfectly. I've checked the rigid duct, placed my hand on all external metal areas, and have isolated the vibration noise as internal and not related to any external parts or attachments.
FYI, Miele did not have my 2-year warranty on file. My "authorized" installers forgot to fax in the paperwork in 2010! So I had to track them down and ask them to re-fax the documents to Miele. However, even without this warranty extension on file, Miele volunteered to comp the service call. Still a bummer that it's making a weird noise that requires service. Stay tuned!