11
R-370EK
R-370ES
Home fuse or circuit breaker blows
when power cord is plugged into wall
receptacle.
Monitor fuse blows when power cord
is plugged into wall receptacle.
Any letters or indicators do not ap-
pear in display when power cord is
first plugged into wall outlet.
Display does not operate properly
when STOP/CLEAR key is touched.
(Buzzer should sound and ":" or time
of day should appear in display.)
Oven lamp does not light when door is
opened.
Oven lamp does not go out when door
is closed.
Oven lamp lights but fan motor and
turntable motor do not 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 ex-
tremely uneven heating is produced
in oven load (food).
Oven does not cook properly when
programmed for Cooking Power P-50
mode. (Operates properly on Cook-
ing Power HIGH (100%) mode.)
Oven goes into COMPU DEFROST
but food is not defrosted well.
AH sensor does not end during sen-
sor cooking condition. (Oven does
not shut off after a cup of water is
boiling by sensor cooking.)
Oven stops at 16 sec. after starting.
OFF
CONDITION
PROBLEM
CONDITION
SHORT IN POWER CORD
SHORT OR OPENED WIRING
MAGNETRON
POWER TRANSFORMER
H.V. RECTIFIER ASSEMBLY
HIGH VOLTAGE CAPACITOR
THERMAL CUT-OUT
SECONDARY INTERLOCK SYSTEM
PRIMARY INTERLOCK SWITCH
MONITOR SWITCH
MONITOR FUSE
OVEN LAMP
COOLING FAN MOTOR
TURNTABLE MOTOR
CONTROL UNIT
WRONG OPERATION
LOW VOLTAGE
DIRTY OVEN CAVITY
KEY UNIT
RELAY (RY1)
COMPU DEFROST
FOIL PATTERN ON PWB.
AH SENSOR
POSSIBLE CAUSE
AND
DEFECTIVE PARTS
TEST PROCEDURE
RE RE A B C D E F F G H RE RE CK I CK CK CK J
K L M N
COOKING
CONDITION
CK = Check / RE = Replace
SENSOR
COOKING
CONDITION
