R-450C
7
CK = Check / RE = Replace
Home fuse blows when power
supply cord is plugged into wall
outlet.
FUSE M10A blows when
power supply cord is plugged
into wall outlet.
Display does not show
anything when power supply
cord is plugged into wall outlet.
Display does not operate
properly when STOP/CLEAR
pad is touched.
Oven lamp does not light at
door opened. (Display
appears.)
Oven does not start when the
START pad is touched.
(Display appears)
Oven lamp does not light
(Display appears.)
Fan motor does not operate.
(Display appears.)
Turntable motor assembly
does not operate. (Display
appears.)
Oven or any electrical parts
does not stop when cooking
time is 0 or STOP/CLEAR pad
is touched.
Oven seems to be operating
but little or no heat is produced
in oven load. (Microwave
power level is set at HIGH)
Oven does not seems to be
operating properly when
MEDIUM HIGH, MEDIUM,
MEDIUM LOW or LOW is set.
(Oven operates properly at HIGH
and then the STOP/CLEAR pad
is touched the oven stops.)
Oven goes into cook cycle but
shuts down before end of
cooking cycle.
Oven stops as soon as when
the START pad is touched.
MAGNETRON
POWER TRANSFORMER
H.V. RECTIFIER ASSEMBLY
HIGH VOLTAGE CAPACITOR
1ST. LATCH SWITCH
2ND. LATCH SWITCH
STOP SWITCH
MONITOR SWITCH
NOISE FILTER
MONITOR RESISTOR
TEMPERATURE FUSE (MG)
THERMAL CUT-OUT (OVEN)
FAN MOTOR
TURNTABLE MOTOR
FUSE M10A
HIGH VOLTAGE FUSE
TOUCH CONTROL PANEL
KEY UNIT
RELAY (RY-1, RY-2)
FOIL PATERN ON P.W.B.
POWER SUPPLY CORD
OVEN LAMP OR SOCKET
SHORTED WIRE HARNESS
OPENED WIRE HARNESS
WALL OUTLET
HOME FUSE OR BREAKER
WRONG OPERATION
MISADJUSTMENT SWITCH
BLOCKED COOLING FAN
BLOCKED VENTILATION OPENING
A B C D E E E E F G H H I I J K L M N O
RE RE CK CK CK CK CK CK CK CK
POSSIBLE CAUSE
AND
DEFECTIVE PARTS
TEST PROCEDURE
PROBLEM
CONDITION
OFF
CONDITION
ON
CONDITION
To Next Page
Loading...
Need help?
General
