Fan Motor Removal - Electrolux E30MO75HSS Technical & Service Manual

Component Teardown

Fan Motor Removal

REMOVAL
1. Disconnect the oven power supply cord and remove
outer case.
2. Discharge high voltage capacitor.
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.
3. Disconnect the wire leads from the fan motor.
4. Remove three (3) screws holding chassis support to
rear cabinet, waveguide and control panel back plate.
5. Remove the chassis support from the oven.
6. Disconnect wire leads from the fan motor.
7. Release main harness from the hole of the fan duct.
8. Release one (1) tab holding the fan duct to the rear
cabinet.
9. Release one (1) tab holding the fan duct to the air
guide (Right).
10. Remove the fan duct assembly from the oven.
11. Remove the fan blade from the fan motor shaft
according the following procedure:
1) Hold the edge of the rotor of the fan motor by
using a pair of groove joint pliers.
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.
2) Remove the fan blade from the shaft of the fan
motor by pulling and rotating the fan blade with
your hand.
12. Remove the two (2) screws and nuts holding the fan
motor to the fan duct.
13. Now, the fan motor is free.
INSTALLATION
1. Install fan motor to fan duct with the two (2) screws.
2. 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.
* 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.
3. Reset the fan duct assembly to its install position.
4. Install tabs of fan duct to rear cabinet and air guide.
5. Install magnetron air guide with the one (1) screw.
6. Reinstall the main harness and thermistor harness to
each hole of the fan duct.
7. Reinstall the chassis support to the control panel
back plate, waveguide and rear cabinet with the three
(3)screws.
8. Re-connect the wire leads to the fan motor, referring
to the pictorial diagram.
9. Re-install the fan motor grounding wire to the air
guide (Right) with one (1) screw.
Bracket
Shaft
Axis
Stator
Rotor
Side View
Figure 4-2. Fan Motor Components
4-4
Coil
Groove
joint pliers
Stator
Gap
Rotor
Rear View
These are the positions that
should be pinched with pliers.
Shaft
Table
Center of
bracket