10
R-7A55(W)/(B)
R-7E45(W)/(B)
PROBLEM
Fuse F2 F6.3A browns when the door is opened.
Home fuse blows when power cord is plugged into wall outlet.
Fuse F1 15A browns when power cord is plugged into wall outlet.
"88:88" does not appear in display when power cord is plugged
into wall outlet.
Display does not operate properly when STOP/CLEAR key is
touched.
Oven lamp does not light when door is opened. (Display oper-
ates.)
Oven does not start when the START key is touched. (Display
operates.)
Oven lamp does not light And turntable motor does not operate.
Fan motor does not operate. (Oven lamp lights.)
Convection fan motor does not operate. (Oven lamp lights.)
Turntable motor does not operate. (Oven lamp lights.)
Oven or any electrical parts (except fan motor) does not stop when
cooking time is 0 or STOP/CLEAR key is touched.
Oven stops after about 4 minutes since START key is touched.
(Except Microwave and Dual Cook modes)
Display operates properly but all electrical parts do not operate.
The oven stops 1 minute after starting.
Oven goes into cook cycle but shuts down before end of cooking
cycle.
After cooking, the temperature of oven cavity is higher than 104˚C
but the fan motor does not operate.
Oven seems to be operating but little or no heat is produced in
oven load. (Microwave power control is set at HIGH)
Oven does not seem to be operating properly during variable
cooking condition. (Oven operates properly at HIGH)
Oven goes into cook cycle but shuts down before end of cooking
cycle.
Convection heating element does not heat.
Oven seems to be operate when the temperature in the oven
cavity is lower or higher than preset one.
Grill heating element does not heat.
Convection heating element does not stop when the temperature
of oven cavity is higher than 210˚C or it stop to heat when the
temperature of oven cavity is lower than 210˚C
Oven goes into cook cycle but shuts down before end of cooking
cycle.
Oven seems to be operating but little or no heat is produced in
oven load. (Microwave power does not seem to be generated
properly)
Oven seems to be operating but the temperature of oven cavity is
lower or higher than preset one.
Convection heating element does not heat.
Grill heating element does not heat.
TEST PROCEDURE
OFF
CONDITION
DUAL COOKING
CONDITION
(MICRO./GRILL)
MAGNETRON
HIGH VOLTAGE TRANSFORMER
H.V. RECTIFIER ASSEMBLY
H.V. HARNESS
HIGH VOLTAGE CAPACITOR
1ST. LATCH SWITCH
2ND. LATCH SWITCH
STOP SWITCH
MONITOR SWITCH
MONITOR RESISTOR
DAMPER SWITCH
THERMAL CUT-OUT 170˚C TC1
THERMAL CUT-OUT 125˚C TC2
THERMAL CUT-OUT 190˚C TC3
TURNTABLE MOTOR
A B C
D E E E E F E G G G H
COOKING
CONDITION
(COMMON MODE)
MICROWAVE
COOKING
CONDITION
CONVECTION
COOKING
CONDITION
DUAL COOKING
CONDITION
(COMMON MODE)
DUAL COOKING
CONDITION
(MICRO./CONV.)
GRILL
COOKING
CONDITION
POSSIBLE CAUSE
AND
DEFECTIVE PARTS
