Whirlpool MH61lqXB Use And Care Manual page 7

Do not
start a microwave oven when it is
empty. Product life may be shortened.
If you practice programming the oven,
put
a container of water in the oven.
It is normal for the inside of the oven door
to look wavy after the oven has been
running for a while.
Do not
try to melt paraffin wax in the oven.
Paraffin wax will not melt in a microwave
oven because it allows microwaves to pass
through it.
General information
Do not
use newspaper or other printed
paper in the oven. Fire could result.
Do not
dry flowers, fruit, herbs, wood,
paper, gourds, or clothes in the oven. Fire
could result.
If your electrical power line or outlet
voltage
is less than 110 volts, cooking times
may be longer. Have a qualified electrician
check your electrical system.