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5-9-5 Magnetron Thermal Cutout
The magnetron thermal cutout is located above the
leads to the magnetrons. It is designed to prevent
damage to the magnetron if an overheated condition
develops in the tube to cooling fan failure, obstructed
air ducts, 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 320OF(160OC)
causing the oven to shut down. After the temperature
drops to 140OF(60OC) it will reset and cooking will be
able to resume.
To Remove Magnetron Thermal Cutout :
1. See ‘Removing Magnetron’.
MAGNETRON THERMAL CUTOUT
MAGNETRON
SENSOR COOKING TEST
1. Place 1/3 cup tap water in oven.
2. Touch potato , the oven starts immediately.
3. Control Beeps and Shuts off.
4. Touch Pause/Cancel .
1) Test
OK
- Normal
2) Test
Fails
- Check Sensor. See Sensor Test Below.
SENSOR TEST (QUICK TEST)
1. With 2 fingers touch and hold the following pads at the same time :
Auto Defrost and Sensor Reheat
2. Observe diagnostic number in display (Numbers approximate).
●
15-185
(Normal-verify with “detection test” )
●
213
or Higher (Sensor failed to open, sensor
unplugged, wiring or smart board.)
● Less then 6 (shorted sensor, or smart board).
NOTE :
Only heater terminals ( H ; Black and Red leads) can be checked with ohmmeter(30Ω).
CAUTION : DO NOT ATTEMPT TO CHECK SENSOR TERMINALS (White and Orange leads).
CAN DAMAGE SENSOR.
5-10 SENSOR
The Sensor Cooking Function uses a special gas sensor
which detects both humidity(steam) and hydrocarbons
(food odors) during the cooking process. Before conducting
either of the sensor tests below, ensure the unit is plugged
into a will outlet for at least 5 minutes. If already plugged in,
proceed. The sensor is a plug-in device located in the vent
area at the top left hand corner of the cavity behind the grille.
To Service :
1. Disconnect power and remove grille.
2. Separate retainer from receptacle and unplug sensor.
VENT MOTOR
GAS SENSOR
