![]() The main control board provides an excitation voltage (+5v) to the thermistor with a 2-wire connection (this is because the thermistor change in resistance is large compared to the resistance of the leads). Thermistors used in GE refrigerators are made up of NTC (sintered metal oxides ceramic made of manganese, nickel, cobalt and other elements), combined with binders and stabilizers then pressed into a precise shape to dictate their resistance and temperature curve. Negative Temperature Coefficient (NTC) – resistance value decreases as the temperature increases (i.e.Positive Temperature Coefficient (PTC) – resistance value increases as the temperature increases.Please note that there are two types of thermistors: Because thermistors are highly sensitive in order to maintain temperature for refrigerators, it is vital to ensure that thermistors are working correctly 24/7. Table of ContentsĪ thermistor, which is combination of the words thermal and res istor, is a type of resistor used to measure temperature changes and deliver differing electrical resistance in response to that change. Although this section as intended for a GE Profile PFCF1NFW refrigerator, many information will be applicable to other GE refrigerators made after after 2006.
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