Electrolux EW30MO55HSA Service Manual download pdf (Page 34)

Component Teardown

4-4

Fan Motor Removal

REMOVAL

1. Disconnect the oven power supply cord and remove

outer case.

2. Discharge high voltage capacitor.

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.

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.

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

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.

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.

* 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 4-2. Fan Motor Components

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Electrolux EW30MO55HSA Service Manual Page 34

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