Temperature Thermistor - Panasonic NN­GS595A Service Manual

10/24/2016
2. During oven operation, input current is approximately 0.4A.
TEMP MAGNETRON THERMISTOR STEAM HEATER THERMISTOR
Unplug CN701
If both a and b check OK, the Inverter Power Supply (U) can be determined to be OK.
5.6 Temperature thermistor
These sensor monitors the heat produced by the heater circuit and maintains the magnetron temperature which user had selected.
Normal room temperature 10°C to 30°C, the reading across the temperature thermistor should be as follows.
TEMP MAGNETRON THERMISTOR STEAM HEATER THERMISTOR
100°C 30­60KΩ
25°C 700K­1.5MΩ
If the resistance reading is out of the range stated here, the thermistor is detective and must be replaced.
5.7 IR Sensor
To test if IR sensor is ok by doing the following procedures.
Test
1. Program DPC.
1. Press Timer/Clock pad twice.
2. Press Start pad once.
3. Press Micro Power pad once.
2. Open the door, then keep pressing Start pad for more than 2 seconds until buzzer beeps.
3. Remain door opening and press Start pad twice, then "°C" will be shown on the display.
4. Close the door.
5. Press Start pad, IR sensor will swing. After 4 seconds, it will stop and show max and minimum temperature readings of
8 eyes IR sensor on display.
6. If the reading is within the limited range of oven temperature, and all above is ok, you may decide IR sensor functions
properly.
7. Press Stop/Resent pad to finish the test.
file:///C:/Users/sh.dehghani/Desktop/NN­GS595AOTSVC_PHAMOS0511035C3/viewing/SGML_VIEW_DATA/OT/NN­GS595A/SVC/PHAMOS0511035C3/inde...
INPUT AMPERE
<0.4A Oven stops in 3 seconds after started.
10­20KΩ
100K­300KΩ
XML Service Manual
OVEN
FAILURE CODE
OVEN
10­20KΩ
100K­300KΩ
THERMISTOR
THERMISTOR
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