John for Model Number NDE7800AYW Sounds like belt squealing when dryer turns on and after a few minutes it quits making the squealing noise.
Answer Hello John! Make sure you are not overloading the dryer. In the case that is it not being overloaded, you will need a new belt. The part number is WP40111201. Thanks! Read More... Answered by AppliancePartsPros.com | Tuesday, March 15, 2011