Replacement Of Fuse/Drive Motor - Samsung MW5480W Service Manual

4-3-4 Removal of Key Door & Spring
1. Remove pin hinge from Door "E"
Detach spring from Door "E" and key door.
2. After replacement of the defective component
parts of the door, reassemble it and follow the
instructions below for proper installation and
adjustment so as to prevent an excessive
microwave leakage.
3. When mounting the door to the oven, be sure to
adjust the door parallel to the bottom line of the
oven face plate by moving the upper hinge and
lower hinge in the direction necessary for
proper alignment.
4. Adjust so that the door has no play between the
inner door surface and oven front surface. If the
door assembly is not mounted properly,
microwave energy may leak from the space
between the door and oven.
5. Do the microwave leakage test.
4-4 Replacement of Fuse
1. Disconnect the oven from the power source.
2. Remove the 15A fuse in the fuse holder.
3. When replacing the 15A fuse, be sure to use an
exact replacement part. If new 15A fuse blows
out again after replacement, check the primary
interlock switch, door sensing switch and
interlock monitor switch.
4. When the above three switches operate properly,
check if any other part such as the control circuit
board, blower motor or high voltage
transformer is defective.
4-5 Replacement of Drive Motor
1. Take out the glass tray and the guide roller from
the cavity.
2. Turn the oven upside down to replace the drive motor.
3. Remove a screw securing the drive motor cover.
4. Disconnect all the lead wires from the drive motor.
5. Remove screws securing the drive motor to the
cavity.
6. Remove the drive motor and the coupler.
7. When replacing the drive motor, be sure to
remount it in the correct position with the
coupler.
8. Connect all the leads to the drive motor.
9. Screw the drive motor cover to the base plate
with a screw driver.
Samsung Electronics
Disassembly and Reassembly
Door "E"
Key Door
Screw
Drive Motor Cover Base Plate
Spring
Drive Motor
Thermo
Switch
4-3