Temperature Sensors - Panasonic Microwave Ovens with Inverters Technical Manual

Temperature Sensors

This microwave oven uses 2 different types of temperature sensors. One is a
thermal cutout sensor located on top of the oven cavity, and the other is a
thermistor, which is mounted on the side of the magnetron. See Figure 8.
The thermal cutout sensor is used to stop the flow of AC to the oven, if the cavity
surface overheats for any reason.
The thermistor will shut the oven down and reset the display when the magnetron
overheats and reaches a temperature of 257° F.
The cooking program can be re-started after the magnetron cools down.
The value of this thermistor is 30K to 120K at 50°F ~ 86°F.
Temperature Sensors Location
Thermal cutoff
Thermistor
Figure 8
8