Makes sense to me.My wife is very sensitive to noises like that. She would have killed me if I let something like that go on for a period of time. As a matter of fact, our dishwasher has gotten really loud and she started running it at night until we can get someone out to look at it. I think we paid about 700 for it so I told her if it's going to be more than 300 then we will just get a new one.