Sanyo EM-D953 - Troubleshooting - Power Level Issues; Magnetron High Level Operation; Grill Cooking No Heat

STEP
SEQUENCE
RESULT
(5) PROBLEM The magnetron operates on high level when a lower cook power is selected.
a
0 230
0 Volt
0 230
230 Volt
No problem
Measure water
temperature rise
exactly.
Replace control circuit board.
Normal control circuit board
Replace control circuit board.
(6) PROBLEM Unit does not heat up even if display counts down when key is touched for "Grill Cooking".
a
Normal control circuit board
Replace Heater
∞
52
Normal Resistance.
0
∞
Resistance Incorrect.
Runs
EM-D953
DIRECT ACCESS
More / Less
Slow Cook
Auto Defrost
TIMER / WEIGHT
Micro Power
Convec. Temp.
Grill
3. Micro + Grill 1. Convec. + Micro 2. Convec. + Grill
Dual Cook
CC
Clear/Stop
Auto
Start
Def.
Convec.
Grill Time
80 150 300 450 750 900
Up
Start
Down
Baked
Potato
Chicken
Pieces
Cake/
Pudding
Baked
Fish
Chops/
Steaks
Snacks
Frozen
Pizza
Casserole
Roast
Joint
Low / High
Kg
LB
OZ
1
0
0
1
5
0
4
5
0
7
0
0
8
5
0
A
uto
Start
D
ef.
T
im
e
10
0
0
Check resistance of
heater.
Approximately 51.6Ω
measured over
both tubes.
Set power level
at low.
Touch START key and measure
voltage between leads for
primary winding of H.V transformer
after removing the wire leads from
terminals of H.V transformer.
-13-
Normal Heater
Runs
Runs
E
M
-
S
3
5
0