Component Teardown
4-5
Fan Motor Removal
Removal
1. Disconnect the oven power supply cord and remove
outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Disconnect the wire leads from the fan motor.
5. Remove the two (2) screws holding the fan motor to
the oven cavity back plate.
6. Remove the fan blade from the fan motor shaft
according to the following procedure.
7. Hold the edge of the rotor of the fan motor by using a
pair of groove joint pliers.
8. Remove the fan blade from the shaft of the fan motor
by pulling and rotating the fan blade with your hand.
9. Now, the fan blade and the fan motor will be free.
Make sure that any pieces do not enter the gap
between the rotor and the stator of the fan motor
because the rotor is easily 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 bracket by touching with pliers.
Do not reuse the removed fan blade because the
hole (for shaft) may be larger than normal.
Installation
Install the fan blade to the fan motor shaft according to
the following procedure:
1. Hold the center of the bracket which supports the
shaft of the fan motor on the flat table.
2. Apply the screw lock tight into the hole (for shaft)
of the fan blade.
3. Install the fan blade to the shaft of fan motor by
pushing the fan blade with a small, light weight,
ball peen hammer or rubber mallet.
3. Reset the fan duct assembly to its install position.
5. Install the fan motor to the oven cavity back plate
with the two (2) screws.
6. Connect the wire leads to the fan motor, referring to
the wiring diagram.
* Do not hit fan blade with excessive force when
installing because the bracket may be disfigured.
* Make sure that the fan blade rotates smooth
after
installation.
* Make sure the axis of the shaft is not slanted.
Gap
Bracket
Stator
Coil
Shaft
Axis
Stator
Rotor
These are the positions that
should be pinched with pliers.
Shaft
Table
Center of
bracket
Rear View
Side View
Rotor
Groove
joint pliers
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.
Figure 4-4. Fan Motor Components
Summary of Contents for EI27MO45GSA
Page 2: ......
Page 32: ...Troubleshooting and Testing 3 14 Notes ...
Page 46: ...Wiring Diagrams 5 4 Notes ...
Page 52: ...Parts List 6 6 Notes ...