Electrolux EI30SM55JB, Technical & Service Manual

Page: 44 / 62

Component Teardown and Testing
4-6
Hood Fan Thermostat (60ºC ON and
70ºC OFF) Removal
1. Disconnect the power supply cord and then remove
outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Disconnect the wire leads from the hood fan
thermostat (60°C ON or 70°C OFF).
5. Remove one (1) screw holding the thermostat (60°C
ON or 70°C OFF) to the right base plate.
6. Remove the hood fan thermostat (60°C ON or 70°C
OFF) from the right base plate.
7. Now, the hood fan thermostat (60°C ON or 70°C
OFF) is free.
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. Thermostat Removal
Cooling Fan Motor Removal
1. Disconnect the power supply cord and then remove
outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Remove two (2) screws holding the chassis support
right to the rear and face of the oven cavity flange.
5. Remove the one (1) screw holding the noise filter
assembly to the fan duct.
6. Disconnect the wire leads from the fan motor.
7. Disconnect the high voltage wire leads of the high
voltage rectifier assembly from the magnetron.
8. Disconnect filament lead of transformer from
magnetron.
9. Remove the one (1) screw holding the hood duct to
the fan duct and remove the one (1) screw holding
the oven cavity top plate to the fan duct.
10. Remove the one (1) screw holding the right base
plate to fan duct and remove the fan duct assembly.
11. Remove the fan blade from the fan motor shaft
according the following procedure.
12. Hold the edge of the rotor of the fan motor by using a
pair of groove joint pliers.
13. Remove the fan blade from the shaft of the fan motor
by pulling and rotating the fan blade with your hand.
14. Now, the fan blade will be free.
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.
* Make sure that no metal pieces 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 injured.
* 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.