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HVAC
24
THERMISTOR POSITION ON EVAPOR
INSPECTION
1. Dip the sensor in ice water and measure the resistance with a digital multimeter.
2. Then pour hot water into it and check for change in resistance between pin 1 and pin 2 of the thermistor.
3. The resistance should decrease as per the above graph and table
CAUTION
When checking the resistance the temperature should not exceed the range of -40
0
Cto 85
0
C.