Page 15
CK = Chec
k / RE = Replace
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 into wall
receptacle.
Display does not operate properly when STOP/CLEAR key is touched.
(The time of day should appear on the display with beep sound during
normal condition.)
Oven lamp does not light with door is opened.
Hood fan motor operates when power cord is first plugged into wall
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
automatically. (Normally, food fan motor should be operating at low
speed.)
Hood lights do not turn on when WORK LIGHT pad or NIGHT LIGHT pad
is pressed.
Hood fan motor does not rotate at all with touched FAN HI/LO pad.
Speed of the hood fan motor does not change when the FAN HI/LO pad is
touched for this function.
Oven lamp does not light in cook cycle. (But it does light when door is
opened.)
Fan motor does not operate. (Oven lamp and turntable motor operate.)
Turntable motor does not operate (Oven lamp lights and fan motor
operate.)
Oven does not go into cook cycle when START pad is touched
Oven seems to be operating but little or no heat is produced in oven load.
(Food incompletely cooked or not cooked at all at end of cook cycle.)
Oven goes into a cook cycle but extremely uneven heating is produced in
oven load (food).
Variable cooking does not operate properly except Cooking Power 10 (P-
HI) mode.
Function of COMPU DEFROST does not operate properly.
Stirrer motor does not operate. (Other parts operate.)
Oven goes into COMPU DEFROST but food is not defrosted well.
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
THERM
AL
CUT-OUT
D
HIGH
VOLTAGE
CAPACITOR
C
H.V.
RECTIFIER
B
POWER
TRANSFORMER
A
MAGNETRON
The oven stops and "ERROR" is displayed or does not end during
Sensor Cooking condition. (Oven does not shut off after a cup of water
is boiling by Sensor Cooking.)
Oven stops at 32 seconds after starting
.
SENSOR
COOKING
CONDITION
F
M
V
1
5
7
G
C
