NEC 3500AG Noisy

I have NEC 3500AG and 3520AG external burners. As soon as I turn on the 3500AG, it is rather noisy. The 3520AG is quiet. Any thoughts. Anyone have any links to suppliers out there for the 3520AG or 3540AG recorders?

Thanks in advance.

I think it may be the enclosure’s fan.

Most likely :slight_smile: You can probably fit a new fan quite easily.