GE JNM1851DMBB Owner's Manual page 30

Other features your model may have.
How to Use the Shelf
When Microwaving
s
Make sure the shelf is
positioned properly
inside the microwave
to prevent damage to
the oven from arcing.
s
Do not use a
microwave browning
dish on the shelf. The
shelf could overheat.
s
Do not use the oven
with the shelf on the
microwave floor.
This could damage
the microwave.
s
Use pot holders when
handling the shelf—
it may be hot.
s
Do not use the shelf
when cooking
popcorn.
s
Do not use the shelf
with Sensor Cooking
or Reheat.
30
Shelf
Food microwaves best when placed on the
turntable or on the shelf in the lower position.
Only use the shelf when reheating on more
than one level. Do not store the shelf inside
the oven cavity.