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Convection Heater Assembly
Disassembly
To remove the convection heater assembly:
1. Remove the Outer Cover. (See
Outer Cover
.)
2. Remove the door. (See
Door Assembly
.)
3. Remove the control panel. (See
Control Panel
Assembly Removal
.)
4. Remove the latch bracket. (See
Door Switch
Removal
.)
5. Remove the Magnetron. (See
Magnetron
Removal
.)
6. Remove the Bottom Cover. (See
Bottom Cover
.)
7. Disconnect the turntable motor and heater wire
harness.
Disconnect
• Convection Heater is a part of the Convection
Heater Assembly.
• For operating algorithms, see
Load Algorithm
Chart
.
Troubleshooting
Note:
To gain better access to components, remove
the wires that plug onto the large relays on the
Relay Board. (See
Relay Board
.
) Cut the wire tie that
the Smart Board
CN103 wire harn ess (See
Smart
Board
.) is routed through.
Check voltage between either side of the Bottom
TCO and Relay Board CN6 pin 7.
• If 120 VAC is not present, convection relay is
not closing. See
Relay Board
troubleshooting
section.
• If 120 VAC is present, problem is with
Convection Motor or wiring (See
Wiring
Diagram
.
) to motor.
To remove the convection fan motor:
(See
Convection Heater Assembly
.)
(
Continued Next Page
)
8. Remove the 3 Phillips-head screws and
straighten the 2 tabs that attach the duct
extension to the bottom of the oven. Remove
the duct extension.
Tab
Tab
Duct Extension
9. Place the oven on its left side.
10. Disconnect wiring connected to the Bottom TCO,
hood TCO, high voltage transformer primary,
convection TCO, convection heater, and lower
blower motor.
11 Remove the Convection Heater and lower
blower motor wires from 2 retainers located in
front of the transformer.
12. Remove the Phillips-head screw that attaches
the bottom of the baseplate to the back of the
oven.