POSSIBLE C
AS
E AND
DEFE
CT
IVE PART
S
PROBLEM
TEST PROCEDURE
CONDITION
OFF
CONDITION
IDLE
CONDITION
MICROWAVE
COOKING
CONDITION
Home fuse blows when power cord is plugged into wall receptacle.
Monitor fuse blows when power cord is plugged into wall receptacle.
Display does not illuminate when power cord is first plugged i
nto wall
receptacle.
Display does not operate properly when STOP/CLEAR key is touched.
(The time of day should appear on the display with bee
p
sound du
ring
normal condition.)
Oven lamp does not light with door is opened.
Hood fan motor operates when power cord is first plugged into w
all
receptacle.
Temperature of oven base seems more than 140ûF (60ûC) because of
operation of the range below. But hood fan motor does not
turn on
aut
om
aticall
y
.
(
N
ormall
y, foo
d fan
mo
tor should
be oper
a
ti
n
g at low
s
peed.)
Hood lights do not turn on when WO
RK L
IGHT p
ad or NIGHT LIGHT pad
is pressed.
Hood fan
motor
d
oes no
t rot
ate at
al
l with tou
c
hed FAN
HI/
LO pad.
Sp
eed of the
hoo
d fan motor does
no
t c
ha
nge when
the FAN HI/L
O pa
d i
s
touched for this
function.
Oven l
amp
d
oes not
l
i
g
ht in cook cycl
e. (
But it doe
s l
i
ght when door i
s
opened.)
Fan m
otor does not operate. (Oven lamp
and tur
n
tab
l
e m
o
tor oper
a
te.)
Turntabl
e motor d
oes not op
erate (O
ven lamp l
ights
and fan moto
r
oper
a
te.)
Oven does n
ot go i
nto co
ok
cy
c
le wh
en ST
A
RT pa
d
i
s tou
ched
Oven see
ms to be oper
a
tin
g but li
ttle or no hea
t i
s produced i
n oven l
o
ad.
(Food incomp
l
ete
l
y cooked or not cooked at all at e
nd of c
oo
k
cy
c
l
e.)
Oven goe
s into a
cook cycl
e
bu
t extremel
y
u
ne
v
en
heating
i
s p
r
oduced in
oven load (
f
ood).
Var
i
able c
o
ok
ing doe
s not operate
p
r
o
perly ex
c
ep
t Cooki
ng Power 10 (P-
HI) mo
de.
Functi
on
of
CO
MPU
DE
FROST d
oes not operate pr
o
perly.
Sti
rrer motor does not operate. (Oth
er parts operate.)
Oven goes
into C
O
MPU D
EFROST but food i
s not
de
frosted w
el
l
.
CK LOW VOLTAGE
CK NO POWER AT OUTLET
RE SHORTED IN POWER CORD
CK OPENED OR SHORTED WIRING
CK HOOD MOTOR CAPACITOR
RE HOOD LAMP OR SOCKET
CK
TURNTABLE OFF CONDITION
RE TURNTABLE MOTOR
RE FAN MOTOR
RE OVEN LAMP OR SOCKET
FOIL PATERN ON P.W.B.
O
N
RELAY (RY-5)
N RELAY (RY-4)
N
RELAY (RY-3)
N
RELAY (RY-2)
N RELAY (RY-1)
M
KEY UNIT
L
CONTROL UNIT
K HOOD FAN MOTOR
J HOOD HERMAL CUT-OUT
I MONITOR FUSE
H
MONITOR SWITCH
G
SECONDARY INTERLOCK SYSTEM
F
PRIMARY INTERLOCK SWITCH
E
TEMPERATURE FUSE OR THERMAL
CUT-OUT
D HIGH VOLTAGE CAPACITOR
C
H.V. RECTIFIER
B
POWER TRANSFORMER
A
MAGNETRON
The oven s
t
op
s an
d
"ERROR
" i
s d
is
p
la
yed or d
oe
s n
ot
e
nd
during
Se
nsor
Co
ok
i
ng
c
o
ndi
ti
o
n.
(Oven does
not shut
o
ff
a
fter a
c
up of water
i
s bo
i
lin
g
b
y Sensor Cook
i
ng
.)
Oven stops at 32
s
e
c
o
nd
s af
te
r starting
.
SENSOR
COOKIN
G
CONDI
TION
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