26
4. Alignment and Adjustments
4-8-3 Hood Thermal Cutout
This cutout will protect the touch control from
excessive heat by turning the vent fan on at low
speed. If the surface units of the range are used
for long periods of time heat will build up and could
damage the microwave control. In order to prevent
this a thermal cutout is installed on the duct behind
the control. This cutout will close (158°F/70°C - vent
fan energized)and open (104°F/40°C - vent fan de-
energized) depending on temperatures it senses.
To Remove hood Thermal Cutout :
1.
Disconnect power and remove grill.
2.
Remove control box assembly.
3.
Remove two wire leads and unscrew one screw
securing the cutout on the duct.
NOTE
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to detect. The only time it functions is during an
overheat condition. It will be normally open when
checked with an ohmmeter.
Bottom Thermal Cutout
Hood Thermal Cutout
4-8-4 Bottom Thermal Cutout
This part can be serviced without removing the microwave from installation.
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248°F(120°C) and remove all power to the microwave oven.
This cutout is designed to not be resetable.
To Remove Magnetron Thermal Cutout :
1.
Disconnect power and remove grill.
2.
Remove control box assembly.
3.
Remove two wire leads and unscrew one screw securing the cutout on the base plate.
4-8-5 Magnetron Thermal Cutout
The magnetron thermal cutout is located above
the leads to the magnetron. It is designed to
prevent damage to the magnetron if an overheated
condition develops in the tube due to a cooling fan
failure, obstructed air ducts, or a dirty or blocked
air intake. Under normal operation, the magnetron
thermal cutout remains closed. However, when
abnormally high temperatures are reached within the
magnetron, the magnetron thermal cutout will open
at 302°F(150°C) causing the oven to shut down. After
the temperature drops to 140° F(60°C) it will reset
and cooking will be able to resume.
To Remove Magnetron Thermal Cutout :
1.
See ‘Removing Magnetron’.
Magnetron
Thermal Cutout
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