Service manual

11
R-630DK
R-630DW
R-630DS
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.
All letters and 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 P-HI (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 setting.
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 PRIMARY INTERLOCK SYSTEM SECONDARY INTERLOCK SWITCH MONITOR SWITCH MONITOR FUSE OVEN LAMP OR SOCKET 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 ABCDE FF GH RE RE CK I CK CKCK JKLMN
SENSOR
COOKING
CONDITION
CK = Check / RE = Replace