STEP
SEQUENCE
RESUL
T
(5) PROBLEM
The magnetron oper
ates on
high le
v
el when a lo
w
er cook
po
w
er is selected.
a
0
230
0 V
olt
0
230
230 V
olt
No prob
lem
Measure w
ater
temper
ature r
ise
e
xactly
.
Replace control
circuit board.
Nor
mal control
circuit board
Replace control
circuit board.
(6) PROBLEM
Unit does not heat up e
v
en
if displa
y counts do
wn when
k
e
y
is touched f
o
r
"Gr
ill Cooking".
a
Nor
mal control
circuit board
Replace Heater
∞
52
Nor
mal
Resistance
.
0
∞
Resistance
Incorrect.
Runs
1
0
0
1
5
0
4
5
0
7
0
0
8
5
0
A
uto
Star
t
D
ef.
Tim
e
1
0
0
0
Chec
k resistance of
heater
.
Appro
ximately 48.7
Ω
measured o
v
er
both ter
minals
.
Set po
w
er le
v
e
l
at lo
w
.
T
ouch
ST
ART
k
e
y
and measure
v
oltage betw
een leads f
o
r
pr
imar
y winding of H.V tr
ansf
or
mer
after remo
ving the wire leads from
ter
minals of H.V tr
ansf
or
mer
.
-13-
Nor
mal Heater
Runs
Runs
EM
-S350
12
3
4
EM-D9750
DIRECT A
CCESS
/
C
Cooking Assistant
2.
1.
3.
