Electrolux EW27MO55HSA, Technical & Service Manual

Page: 32 / 48

Component Teardown
4-2
Magnetron Removal
1. Disconnect the oven power supply cord and remove
outer case.
2. Discharge high voltage capacitor.
3. Disconnect filament lead of transformer from
magnetron.
4. Disconnect high voltage wire lead from magnetron.
5. Carefully remove four (4) mounting screws hold the
magnetron to waveguide, when removing the screws
hold the magnetron to prevent it from falling.
6. Remove the magnetron from the unit with care so the
magnetron tube does not hit by any metal objects
around the tube.
Outer Case Removal
1. Disconnect the power supply cord.
2. Remove six (6) screws holding top duct and remove.
3. Remove the eight (8) screws on the back side of the
outer case and two ducts to the back plate.
4. Remove the four (4) screws holding the right and left
sides of the outer case cabinet to the bottom plate.
5. Remove three (3) screws on top of the cabinet
directly behind the control panel.
6. Slide the entire outer case cabinet back out about 1
inch to free it from the retaining clips on the oven
cavity front plate.
7. Lift the entire outer case cabinet from the unit.
1. Disconnect oven from power supply before
removing outer case.
2. Discharge the high voltage capacitor before
touching any oven components or wiring.
When replacing the magnetron, be sure the R.F.
Gasket is in place and mounting screws are
tightened securely.
Power Transformer Removal
REMOVAL
1. Disconnect the oven power supply cord and remove
outer case.
2. Discharge high voltage capacitor.
3. Disconnect filament leads of transformer from the
magnetron and capacitor.
4. Disconnect high voltage lead of capacitor from the
transformer.
5. Disconnect wire leads from transformer.
6. Remove two (2) screws holding the transformer to
the base cabinet.
RE-INSTALL
1. Rest the transformer on the base cabinet with its
primary terminals toward rear cabinet.
2. Insert the two edges of the transformer into two metal
tabs of the base cabinet.
3. Make sure the transformer is mounted correctly to
the corners underneath those tabs.
4. After re-installing the transformer, secure transformer
with two screws to the base cabinet, one is with an
outer tooth washer and the other is without outer
tooth washer.
5. Re-connect the wire leads (primary and high voltage)
and high voltage lead to the transformer and filament
leads of transformer to the magnetron and capacitor,
referring to the Wiring Diagram.
6. Re-install the outer case and check that the oven is
operating
properly.
Hot (orange) wire must be connected to the power
transformer terminal nearest to the transformer
mounting screw.
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.
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.