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Lower Heater Assembly
The lower ceramic heater has an approximate
resistance value of 32 to 42 Ω.
To remove the lower heater assembly:
Remove the oven from cabinet or wall opening.
(See Oven Removal / Partial Removal.)
Remove the 2 Phillips-head screws from the
bottom of each side of the outer cover.
Remove the 6 Phillips-head screws that attach
the bottom to the oven.
1.
2.
3.
Tabs
Lower heater
Heater
bracket
Reflector
Base plate
Bottom View with Baseplate Removed
Convection Heater Assembly and Thermistor
The oven must be removed from the cabinet or wall
opening to access the convection heater assembly.
(See Oven Removal / Partial Removal.)
The convection heater assembly is composed of an
inner and outer fan blade, motor, heating element,
and thermistor.
Remove the rear cover. Three Phillips-head screws
hold the cover in place.
(Continued Next Page)
Convection Heater Assembly Shown with
Rear Cover Removed
Thermistor
Thermistor
Thermistor
The thermistor must be removed before removing
the convection heater assembly. The thermistor is
attached to the convection heater assembly by a
single Phillips-head screw.
The thermistor is connected to the power board
at location CN8. The approximate values at room
temperature are: Red - Blue = 400K Ω; Red - White
= 290K Ω; Blue - White = 110K Ω.
Disconnect the bottom heater and turntable
wire harnesses.
Straighten the 4 folded tabs and remove the
3 Phillips-head screws that hold the heater
assembly to the oven chassis.
4.
5.