R-209(IN)
R-209(W)
R-209(Y)
9
TROUBLESHOOTING GUIDE
When troubleshooting the microwave oven, it is helpful
to follow the Sequence of Operation in performing the
checks. Many of the possible causes of trouble will
require that a specific test be performed. These tests
are given a procedure letter which will be found in the
“Test Procedure” section.
IMPORTANT: If the oven becomes inoperative because
of a blown fuse F1 T6.3A in the monitored
latch switch SW1 - timer switch - monitor
switch circuit, check the monitored latch
switch SW1, timer switch and monitor
switch SW2 before replacing the fuse F1
T6.3A.
CK = Check / RE = Replace
MAGNETRON
HIGH VOLTAGE TRANSFORMER
H.V. RECTIFIER ASSEMBLY
HIGH VOLTAGE WIRE
HIGH VOLTAGE CAPACITOR
MONITORED LATCH SWITCH SW1
LATCH
SWITCH SW3
MONITOR SWITCH SW2
TEMPERATURE FUSE TF
TIMER MOTOR
TIMER SWITCH
FAN MOTOR
TURNTABLE MOTOR
FUSE F1 T6.3A
CONTROL UNIT
RELAY (RY-1)
FOIL PATERN ON P.W.B.
POWER SUPPLY CORD
SHORTED WIRE HARNESS
OPENED WIRE HARNESS
OVEN LAMP
WALL OUTLET
MISADJUSTMENT SWITCH
HOME FUSE OR BREAKER
BLOCKED COOLING FAN
BLOCKED VENTILATION
NOISE FILTER
H.V. FUSE F2
Home fuse blows when power
supply cord is plugged into
wall outlet.
FUSE F1 T6.3A blows when
power supply cord is plugged
into wall outlet.
Oven does not start when the
timer is set.
Oven lamp does not light
(Other function is normal.)
Fan motor does not operate.
(Other function is normal.)
Turntable motor does not op-
erate. (Other function is nor-
mal.)
Oven or any electrical parts
does not stop.
Oven seems to be operating
but little or no heat is produced
in oven load. (Microwave
power level is set at
800W)
Oven does not seems to be
operating properly when
560W,
400W,
240W
or
80W is set. (Oven oper-
ates properly at
800W.)
Oven goes into cook cycle but
shuts down before end of cook-
ing cycle.
OFF
CONDITION
PROBLEM
CONDITION
POSSIBLE CAUSE
AND
DEFECTIVE PARTS
TEST PROCEDURE
ON
CONDITION
A B C
CK
D E E E F K K I I G L M N
RE CKCKRECK CKCKCK CK
H J
Содержание R-209FW
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