GE PT970 Owner's Manual page 8

IMPORTANT SAFETY INFORMATION.
READALLINSTRUCTIONS BEFORE USING.
ALLTHESE THINGS A RENORMAL WITHYOUR MICROWAVE
Steam oF xapoF escaping from aFound
tile dooI:
Light Feflection aFound tile dooF of tile
otlteF case.
Dimming of die oxen ligilt and change
in tile blower sound may OCClli while
opeFafing at power lexels otheF than high.
Tile microwave fan m W opeFate with both
oxens off. It is cooling tile conuol and will
mm itself off.
Some TV-Fadio inmFference might be
noticed while using youi microwa_> oven.
It's similaF to tile inmFference caused by
other small appliances and does not
indicam a problem _,ith your o_n.
A dull thumping sound while tile oxen
is operating.