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Disconnect
Disconnect
Bottom TCO
3. Check voltage between the double wire in the
connector that connects to RY14 and both sides
of the Bottom TCO.
• If 120 VAC is present on both sides of the
Bottom TCO, the Bottom TCO is operating
properly.
• If 120 VAC is present on only one side of the
bottom TCO, replace the Bottom TCO.
• If 120 VAC is not present on either side of the
Bottom TCO, go to step 4.
4. Check voltage between the double wire in the
connector that connects to RY14 and the output
of the Magnetron TCO (white and red wires).
• If 120 VAC is present, the wire between the
Bottom TCO and the Magnetron TCO is open.
• If 120 VAC is not present, see Magnetron
TCO, troubleshooting step 3.
Disassembly
To remove the Bottom TCO:
1. Pivot the Control Panel Assembly out from the
oven. (See
Control Panel Removal.
)
2. Disconnect wiring from the Bottom TCO.
3. Remove the Phillips-head screw attaching
the Bottom TCO to the oven, then pull the TCO
towards the right.
Hood Thermal Cutout (TCO)
• Location
(See
Right Side View
.
)
• Used to turn on the Ventilation Motor if the
bottom of the microwave gets too hot.
• When switch is open, 5 VDC can be read
between pins 1 and 2 of CN20. When switch is
closed, voltage goes to 0 VDC.
• Normally
open.
• Closes at 158°F, opens at 122
˚
F.
• Disassembly.
(See
Disassembly
.)
Disassembly
To remove the Hood TCO:
1. Pivot the Control Panel Assembly out from the
oven. (See
Control Panel Removal.
)
2. Disconnect wiring to the Hood TCO.
3. Remove the Phillips-head screw attaching the
Hood TCO to the oven and pull the TCO forward.
Hood TCO
Disconnect
Disconnect
