10
R-300BW
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.
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 turnta-
ble motor do not operate.
Oven does not go into cook cycle when
Light Up Dial is turned.
Oven seems to be operating but little or no
heat is produced in oven load. (Food in-
completely 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).
Oven does not cook properly when pro-
grammed for variable cooking mode. (Op-
erates properly on Cooking Power HIGH
mode.)
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 SWITCH
PRIMARY INTERLOCK SYSTEM
MONITOR SWITCH
MONITOR FUSE
OVEN LAMP OR SOCKET
COOLING FAN MOTOR
TURNTABLE MOTOR
CONTROL PANEL
LOW VOLTAGE
DIRTY OVEN CAVITY
RELAY (RY1)
FOIL PATTERN ON PWB.
POSSIBLE CAUSE
AND
DEFECTIVE PARTS
TEST PROCEDURE
RE RE A B C D E F F G H RE RE CK I CKCK J
K
COOKING
CONDITION
CK = Check / RE = Replace
