Section 4 Component Teardown
4-6
Thermal Cut-Out (Cavity) Removal
1. Disconnect power supply cord, remove oven from
wall and remove outer case (Refer to procedure
of “Removal of Oven from Wall” and “Outer Case
Removal”.)
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Remove two (2) unit mounting screws.
5. Remove the hood duct. (Refer to the procedure of
“HOOD FAN MOTOR, HOOD DUCT AND OVEN LAMP
SOCKET REMOVAL”.
6. Straighten the tab holding the thermal cut-out to the
top plate of the oven cavity.
7. Release the thermal cut-out (cavity) from the one slit
of the oven cavity top plate.
8. Disconnect the wire leads from the thermal cut-out
(cavity).
9. Now, the thermal cut-out (cavity) is free.
Cooling Fan Motor Removal
REMOVAL
1. Disconnect the power supply cord, remove the oven
from wall and remove outer case (Refer to proce-
dure of “Removal of Oven from Wall” and “Outer
case Removal”.)
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Disconnect the wire leads from the fan motor and
the chassis support.
5. Remove one (1) screw holding the hood duct to
oven cavity.
6. Release the wire leads from the hole of the hood
duct.
7. Lift up the fan motor side of the hood duct.
8. Remove the two (2) screws holding the fan motor to
the hood duct.
9. Remove the fan blade from the fan motor shaft
according the following procedure.
10. Hold the edge of the rotor of the fan motor by using
a pair of groove joint pliers.
11. Remove the fan blade from the shaft of the fan
motor by pulling and rotating the fan blade with your
hand.
12. Now, the fan blade will be free.
INSTALLATION
1. Install the fan blade to the fan motor shaft according
to the following procedure.
2. Hold the center of the bracket which supports the
shaft of the fan motor on the flat table.
3. Apply the screw lock tight into the hole (for shaft) of
the fan blade.
To discharge the high voltage capacitor, wait for 60
seconds and then short-circuit the connection of the
high-voltage capacitor (that is the connecting lead of
the high-voltage rectifier) against the chassis with the
use of an insulated screwdriver.
NOTE
When the tab is broken or turned off, use the another
tab which is fixed near the slit when the new thermal
cut-out is replaced.
NOTE
Top of Oven C avity
Waveguide
Thermal
C ut-Out
Thermal
C ut-Out
(C avity)
Thermal
C ut-Out
Tab
Tab
S lit
Figure 4-3.
Make sure that any pieces do not enter the gap
between the rotor and the stator of the fan
motor. The rotor is easy shaven by pliers and
metal pieces may be produced. Do not touch the
pliers to the coil of the fan motor because the
coil may be cut or damaged. Do not disfigure
the bracket by touching with the pliers.
CAUTION
Do not re-use the removed fan blade because
the hole (for shaft) may be larger than normal.
CAUTION
Summary of Contents for CGMV173KB
Page 2: ......
Page 14: ...Section 2 Operation 2 2 Figure 2 1 Oven Off Condition Figure 2 2 Oven ON Cooking Condition ...
Page 51: ...Section 5 Wiring Diagrams 5 1 Wiring Schematic Oven ON Condition ...
Page 52: ...Section 5 Wiring Diagrams 5 2 Pictorial Component Diagram ...
Page 54: ...Section 5 Wiring Diagrams 5 4 LD1 LD2 LD3 LD4 LD5 Control Board ...
