Panasonic NN-T990SA Operating Instructions Manual page 19

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All
these things are normal:
The
oven causes
interference with
my
TV.
Some
radio
and
TV
interference
might occur
when
you cook
with the
microwave oven. This
interference
is
similar to the interference
caused by
small appliances
such
as mixers,
vacuums, blow
dryers,
etc..
It
does
not
indicate
a
problem
with
your oven.
The oven
light
dims.
When
cooking
with
a power
other than
P10
(HIGH), the
oven must
cycle
to
obtain
the lower
power
levels.
The
oven
light
will
dim and
clicking
noises
can
be heard
when
the
oven
cycles.
Steam
accumulates
on
the oven door
and warm
air
comes
from
the
oven
vents.
During cooking,
steam and
warm
air
are given
off
from the food. Most
of
the
steam
and
warm
air are
removed
from the oven by
the
air
which
circulates
in
the
oven
cavity.
However,
some
steam
will
condense on
cooler surfaces
such as
the
oven
door.
This
is
normal.
I
accidentally ran
my
microwave oven
without
any
food
in it
Running the oven empty
for
a
short time
will
not
damage
the oven.
However,
we
do
not
recommend
operating the
microwave oven
without
any
food
in
it.
PROBLEM
POSSIBLE
CAUSE
ACTION
The
oven
is
not
plugged
in
securely.
Remove
plug from
outlet,
wait
10 seconds and
reinsert.
Oven
will
not turn
on.
Circuit
breaker
or fuse
is
tripped
or blown.
Reset
circuit
breaker or replace
fuse.
<
There
is
a
problem
with the
outlet.
Plug another appliance
into
the
outlet to
check
if it
is
working.
--
Oven
will
not
start
cooking.
The
door
is
not closed completely.
Start
Pad
was
not pressed
after
programming.
Another
program
is
already
entered
into
the oven.
The program
is
not
correct.
Stop/Reset Pad has been
pressed
accidentally.
Close
the
oven
door
securely.
Press Start Pad.
Press Stop/Beset Pad
to
cancel the previous
program
and
enter
new
program.
Program again according
to
the
Operating
Instructions.
Program oven
again.
The
Glass Tray wobbles.
When
the
oven
ts
operating,
there
is
noise
coming from
the
Glass
Tray.
The
word
"Lock" appears
in
the Display
Window.
The Glass Tray
is
not positioned
property
on
the Roller
Ring
or there
is
food
under
the Roller Ring.
The
Roller
Ring and oven bottom
are
dirty.
Take
out
Glass Tray and
Roller Ring.
Wipe
with
a
damp
cloth
and
reset Roller
Ring
and
Glass Tray
property.
Clean according
to
Care of
Your Microwave
Oven.
Function
Key
Pad has been
activated. Refer
back
to
Function
"
Child Lock"
Pad
Operation
on
page
9.
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