Electrolux EW27MO55HSA, Technical & Service Manual

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Troubleshooting and Testing
3-2
A MAGNETRON
B POWER TRANSFORMER
C H.V. RECTIFIER ASSEMBLY
D HIGH VOLTAGE CAPACITOR
E PRIMARY INTERLOCK SWITCH
F SECONDARY INTERLOCK SYSTEM
G MONITOR SWITCH
H MONITOR FUSE
E THIRD DOOR SWITCH
I THERMAL CUT-OUT
K TOUCH CONTROL PANEL
K KEY UNIT
L RELAY RY-1
L RELAY RY-2
RELAY RY-3 (not used)
RELAY RY-5 (not used)
L RELAY RY-6
N FOIL PATERN ON PWB.
O AH SENSOR
Replace
OVEN LAMP OR SOCKET
Replace
FAN MOTOR
Replace
TURNTABLE MOTOR
Check
LOOSE WIRING
Check
SHORTED IN POWER CORD
Check
NO POWER AT OUTLET
Check
LOW VOLTAGE
O NOISE FILTER
TEST PR
OCEDURE
POSSIBLE CAUSE
AND
DEFECTIVE PARTS
Home fuse b
lo
w
s when po
w
e
r cord is plugged into w
a
ll receptacle
.
Monitor fuse b
lo
w
s when po
w
e
r cord is plugged into w
a
ll receptacle
"ENJO
Y" does not appear in displa
y
when po
w
e
r cord is first plugged
into w
a
ll receptacle
.
Displa
y does not oper
ate proper
ly when ST
OP/CLEAR pad is touched.
(The time of da
y should appear on the displa
y
with beep sound.)
Ov
en lamp does not light with door opened.
O
v
en lamp does not light in cook cycle. (It lights when door is
opened).
Cooking cycle r
uns
1
min
ute then shuts do
wn.
Ov
en lamp lights, b
ut tur
ntab
le motor does not oper
ate
.
T
u
rn
tab
le motor oper
a
tes nor
mally b
u
t cooling f
a
n motor does not
oper
ate
.
Ov
en does not go into a cook cycle
, when ST
AR
T pad is touched.
Lo
w or no po
w
er is produced dur
ing micro
w
a
v
e
cooking (The f
o
od is
heated incompletely or not heated at all) Extremely une
v
en heating is produced in o
v
en load (f
ood).
Function of sensor cooking does not oper
ate proper
ly e
xcept HIGH
po
w
e
r.
Function of A
U
T
O
DEFR
OST does not oper
ate proper
ly
.
PROBLEM
CONDITION
OFF CONDITION COOKING CONDITION (MICROWAVE)