Service manual

34
R-90GC
1. Disconnect the power supply cord.
2. Wait for 60 seconds to discharge the high voltage
capacitor.
3. Remove the turntable tray and the turntable support from
the oven cavity.
4. Lay the oven on its backside.
5. Remove the turntable motor cover by snipping off the
material in four corners.
6. Where the corners have been snipped off, bend corner
SIDE HEATING ELEMENT REMOVAL
1. Disconnect the power supply cord.
2. Remove the outer case cabinet, referring to “OUTER
CASE CABINET REMOVAL”.
3. Open the oven door and block it open.
4. Discharge the high voltage capacitor.
5. Remove the back plate from the oven, referring to “BACK
PLATE REMOVAL”.
6. Remove the heater duct left assembly from the oven
cavity, referring to “HEATER DUCT LEFT ASSEMBLY,
HEATER DUCT UPPER ASSEMBLY AND
CONVECTION DUCT ASSEMBLY REMOVAL
7. Remove the one (1) screw holding the heater mounting
angle B to the heater duct left.
8. Remove the two (2) nuts holding the side heating element
to the heater duct left.
9. Now, the side heating element is free.
CONVECTION MOTOR REMOVAL
1. Disconnect the power supply cord.
2. Remove the outer case cabinet, referring to “OUTER
CASE CABINET REMOVAL”.
3. Open the oven door and block it open.
4. Discharge the high voltage capacitor.
5. Remove the back plate from the oven, referring to “BACK
PLATE REMOVAL”.
6. Remove the convection duct assembly from the oven
cavity, referring to “HEATER DUCT LEFT ASSEMBLY,
HEATER DUCT UPPER ASSEMBLY AND
CONVECTION DUCT ASSEMBLY REMOVAL
7. Loosen the one (1) screw holding the convection fan
assembly to the convection fan motor shaft with a
hexagon key wrench, and remove the convection fan.
8. Remove the four (4) screws holding the convection
motor mounting angle to the convection duct.
9. Remove the six (6) screws holding the convection motor
to the convection motor mounting angle.
10.Remove the convection motor from the convection motor
mounting angle.
11.Now, the convection motor is free.
TOP HEATING ELEMENT REMOVAL
1. Disconnect the power supply cord.
2. Remove the outer case cabinet, referring to “OUTER
CASE CABINET REMOVAL”.
3. Open the oven door and block it open.
4. Discharge the high voltage capacitor.
5. Remove the back plate from the oven, referring to “BACK
PLATE REMOVAL”.
6. Remove the heater duct left assembly from the oven
cavity, referring to “HEATER DUCT LEFT ASSEMBLY,
HEATER DUCT UPPER ASSEMBLY AND
CONVECTION DUCT ASSEMBLY REMOVAL
7. Remove the one (1) screw holding the heater mounting
angle A to the heater duct upper.
8. Remove the two (2) nuts holding the top heating element
to the heater duct upper.
9. Now, the top heating element is free.
TURNTABLE MOTOR REMOVAL
areas flat. No sharp edges must be evident after removal
of the turntable motor.
7. Disconnect the wire leads from the turntable motor.
8. Remove the one (1) screw holding the turntable motor to
the oven cavity bottom plate.
9. Now, the turntable motor is free.
10.After replacement, use the one (1) screw to fit the
turntable motor cover.
DOOR SENSING SWITCH, SECONDARY INTERLOCK SWITCH AND MONITOR SWITCH REPLACEMENT
Removal
1. Disconnect the power supply cord.
2. Remove the outer case cabinet, referring to “OUTER
CASE CABINET REMOVAL”.
bottom plate.
30.Remove the thirteen (13) screws holding the convection
duct to the oven cavity and the heater duct upper.
31.Remove the convection duct assembly from the oven
cavity.
32.Now, the convection duct assembly is free.
33.Remove the nine (9) screws holding the heater duct
upper to the oven cavity.
34.Remove the heater duct upper from the oven cavity.
35.Now, the heater duct upper assembly is free.