LG Speed Oven + MA3884VC Manuel D'utilisation page 124

36. It is hazardous for anyone other
than a competent person to carry
out any service or repair operation
that involves the removal of a cover
which gives protection against
exposure to microwave energy If
you have some questions or
comments, please feel free to
contact me.
37. When heating food in plastic or
paper containers, keep an eye on
the oven due to the possibility of
ignition.
Metallic containers for food and bever-
38.
ages are not allowed during microwave
cooking.
This requirement is not applicable if the
manufacturer specifies size and shape
of metallic containers suitable for micro-
wave cooking.
The appliance must not be installed
39.
behind a decorative door in order to
avoid overheating.