Remove Upper Air Tunnel Assembly; Remove Upper Halogen Assembly - GE SCB2000 Technical Service Manual

3. With the magnetron removed, you can now
see the thermistor, located under the air
tunnel.
Thermistor Thermistor Thermistor
4. Remove 2 screws holding the thermistor in
place. Access the screws through the access
ports.
Note: Plug buttons sit on the access ports.
Remember to insert them when reinstalling the
thermistor.
Screw Access Ports Screw Access Ports
5. Push up on the thermistor from inside the
oven cavity and remove.
6. Disconnect the thermistor plug.

Remove Upper Air Tunnel Assembly

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1. Remove all access covers (see pages 28-29).
2. Remove the exhaust motor, PCB assembly,
and upper barrier (see page 32).
3. Remove 4 screws from upper air tunnel
assembly.
4. Carefully lift assembly up from the chassis to
remove.
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Remove Upper Halogen Assembly

1. Remove all access covers (see pages 28-29).
2. Unplug the wiring harness from the following
components:
• Left latch switches
• Oven cavity T.C.O. (upper left rear of unit)
• Exhaust fan assembly
• All connections to the main PCB except the
LVT
• Upper halogen lamps and oven cavity lamps
• Fuse
• Relay board
• Upper blower fan assembly
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3. Remove the exhaust fan assembly and fan
capacitor support.
– 34 –
Upper Air
Tunnel Assembly
EXHAUST POWER AIR FLOW
UPPER HALOGEN BLOWER AIR FLOW
LOWER HALOGEN BLOWER AIR FLOW
MAGNETRON FAN AIR FLOW
Lower Air
Tunnel Assembly
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