R-216(G)
R-216(IN)
R-216(W)
R - 2 1 6 ( Y )
9
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 in the monitored latch
switch SW1 - 2nd. interlock relay RY2 -
monitor switch SW2 circuit, check the
monitored latch switch SW1, 2nd. inter-
lock relay RY2, 2nd. interlock relay control
switch SW3 and monitor switch SW2 be-
fore replacing the fuse F1.
TROUBLESHOOTING GUIDE
MAGNETRON
HIGH VOLTAGE TRANSFORMER
H.V. RECTIFIER ASSEMBLY
HIGH VOLTAGE WIRE
HIGH VOLTAGE CAPACITOR
MONITORED LATCH SWITCH
SW1
2ND. INTERLOCK RELAY CONTROL SWITCH
SW3
MONITOR SWITCH
SW2
THERMAL CUT-OUT 125˚C (OVEN)
TC2
THERMAL CUT-OUT 95˚C (MG)
TC1
FAN MOTOR
TURNTABLE MOTOR
FUSE T6.3A
F1
CONTROL PANEL
TACT SWITCH
RELAY
RY1
,
RELAY
RY2
,
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 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 when cooking
time is 0.
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 operates properly
at 800W.)
Oven goes into cook cycle but
shuts down before end of cook-
ing cycle.
Oven lamp, turntable motor
and fan motor do not operate.
The microwave power level can
not be changed.
OFF
CONDITION
PROBLEM
CONDITION
POSSIBLE CAUSE
AND
DEFECTIVE PARTS
TEST PROCEDURE
ON
CONDITION
CK = Check / RE = Replace
A B C
CK
D E E E F F G G H K L M M N
RECKCKRE CKCKCK CK CK
I J
