Sir Gab WC
I have noticed there is a diference in noise when you put the extension ring on as well, the fans are quite powerful but the noise should be even like a fan oven, any elctric fan or extractor - if the noise is uneven or rattles then there is a problem, but with all that air being forced around & if you are stood watching it
like i have done you will hear it ............
Our microwave makes a noise, it is coming from the back where a fan is mounted in a very little bearing, put your finger on the back plate when it does it & it stops, it's all of the very thin pressed steel what seems to amplify the noise,
Just tried it with a frozen ready meal,
Yum !
Gonna have to stop all of this food tasting
Pizza is brill, nice & dry with a crisp base
All in all it's just a portable oven,
what you can fill with gravy Hmm !