Replacement for Frigidaire 240597203 Refrigerator Temperature Sensor 12 Month Warranty

Restore reliable refrigerator temperature monitoring with the Wholesale Sensors Replacement for Frigidaire 240597203 Refrigerator Temperature Sensor 2-Pack, backed by a strong 12-Month Warranty and responsive USA-based product support. Designed as an aftermarket replacement for the original 240597203 thermistor, this sensor monitors temperature inside compatible refrigerator cabinets and provides the temperature feedback needed for proper electronic cooling control.

This package includes two replacement temperature sensors, making it convenient for applications requiring multiple compatible sensors, servicing more than one refrigerator, or keeping a spare replacement available. The two sensors are supplied as individual replacement components. Always confirm the correct sensor location and part number for each position before installation.

The 240597203 refrigerator temperature sensor is a thermistor. Unlike a simple mechanical switch that is either open or closed, a thermistor changes electrical resistance as its temperature changes. The refrigerator’s electronic control system reads this changing resistance and uses the information to determine cabinet temperature and manage cooling operation.

The 240597203 replacement thermistor is specified as a 10K ohm NTC temperature sensor. NTC means Negative Temperature Coefficient, which describes a thermistor whose electrical resistance decreases as its temperature rises. This predictable resistance change allows the refrigerator’s electronic controls to interpret changing temperatures and respond according to the appliance’s programmed cooling strategy.

This Wholesale Sensors component is engineered as a perfect OEM-style replacement designed to meet or exceed OEM specifications for compatible applications. Verified replacement and cross-reference numbers associated with the original sensor include 240597203, 240597201, 240597202, 7240597203, 1258948, AH1765215, AP4032998, EA1765215, EAP1765215, PD00000590, and PS1765215.

The original 240597203 has also been replaced by manufacturer part number 240597220. Sears PartsDirect identifies 240597220 as the manufacturer substitution for 240597203 and notes that the replacement component may look different from the original part. This makes the original part number especially useful when identifying compatible replacement applications.

Compatibility extends across a large selection of refrigeration equipment. Documented brands include Frigidaire, Electrolux, Kenmore, Kenmore Elite, Crosley, White-Westinghouse, Viking, and additional related refrigerator brands. Because this thermistor has been used across numerous refrigerator configurations and production revisions, customers should verify their complete appliance model number and original sensor part number before ordering.

Examples of compatible refrigerator models include E23CS75DSS0, E23CS75DSS1, E23CS75DSS2, E23CS78HSS0, E23CS78HPS0, E24RD75HPS0, EI28BS55IB0, EI28BS55IS1, FLSC238DB0, FLSC238DS0, FRS23F4DB2, FRS23H5DSB0, and FRS23KF5DB0, among many additional models.

Because refrigerator manufacturers frequently release multiple revisions of the same basic model family, compatibility should not be determined solely by brand name, refrigerator style, appearance, or approximate production year. Check the appliance identification label for the complete model number and verify that 240597203, 240597220, or an applicable verified cross-reference is specified for the sensor being replaced.

This is particularly important because modern refrigerators may contain multiple temperature sensors. Depending on the appliance, separate thermistors can monitor the fresh-food cabinet, freezer compartment, evaporator, or other temperature-sensitive areas. Sensors can look similar while using different electrical characteristics or serving different functions.

During normal operation, the 240597203 thermistor monitors temperature within the refrigerator cabinet. As the surrounding temperature changes, the thermistor’s resistance changes. The electronic control receives this information and uses it as part of its cooling strategy.

Accurate temperature feedback is important for maintaining stable food-storage conditions. If a thermistor begins providing inaccurate or intermittent information, the control system may respond to a temperature that differs from the actual conditions inside the refrigerator.

Depending on the appliance and failure condition, a deteriorated temperature sensor can contribute to incorrect cabinet temperature, inconsistent cooling, a refrigerator that becomes too warm or too cold, unexpected freezing of food, abnormal cooling cycles, or temperature readings that do not match actual compartment conditions.

However, these symptoms do not automatically mean the 240597203 thermistor has failed. Refrigerator cooling performance depends on many components working together. Before replacing the sensor, inspect other potential causes such as blocked air vents, damaged door seals, excessive frost, dirty condenser coils, evaporator or condenser fan problems, defrost system failures, damaged wiring, loose electrical connections, and electronic control problems.

The existing thermistor and wiring should also be inspected for physical damage. Look for broken wires, damaged insulation, loose terminals, corrosion, moisture intrusion, damaged connectors, or deterioration around the sensing element.

A qualified technician can test the thermistor using an appropriate digital multimeter. Because this application uses a 10K ohm NTC thermistor, resistance should change as sensor temperature changes. Testing should be compared with the appropriate resistance-versus-temperature specification for the application rather than relying on a single room-temperature measurement alone.

Installation should begin by disconnecting the refrigerator from electrical power. Locate the existing sensor according to the service information for your exact appliance model. Depending on the refrigerator design and sensor position, shelves, drawers, air ducts, covers, or interior panels may need to be removed.

Before disconnecting the original sensor, note its mounting position, connector orientation, and wiring route. Carefully disconnect the electrical connection without pulling directly on the wires. Install the new sensor in the same intended location and secure its wiring according to the original configuration.

Correct sensor placement matters. A functioning thermistor mounted in the wrong position can detect a temperature that does not accurately represent the compartment conditions expected by the control system.

After installation, reinstall all panels and components before reconnecting electrical power. Allow the refrigerator sufficient time to complete normal cooling cycles and stabilize before evaluating final temperature performance.

Refrigerators do not use automotive OBD-II diagnostic trouble codes, so automotive codes such as P0117 or P0118 do not apply to this sensor. Some electronically controlled refrigerators can display manufacturer-specific fault codes or enter diagnostic modes when a temperature sensor circuit is open, shorted, or outside the expected range. Always consult service information for the exact refrigerator model when interpreting a displayed error.

Each Wholesale Sensors replacement is built for dependable refrigerator temperature monitoring and is rigorously tested for resistance response, temperature-sensing performance, electrical continuity, connection integrity, and reliability. The 10K NTC design provides the changing electrical response required for compatible 240597203 applications.

Wholesale Sensors specializes in aftermarket replacement sensing components for refrigerators, freezers, appliances, HVAC equipment, commercial refrigeration, pool and spa systems, automotive applications, RV equipment, foodservice equipment, and industrial systems.

Every Wholesale Sensors Replacement for Frigidaire 240597203 Refrigerator Temperature Sensor 2-Pack is backed by a strong 12-Month Warranty and responsive USA-based product support. Before ordering, verify your complete refrigerator model and confirm compatibility with 240597203, its manufacturer replacement 240597220, or an applicable verified cross-reference number.

With confirmed compatibility, this convenient 2-pack provides dependable temperature sensing, a responsive 10K NTC thermistor design, application-specific fit, rigorously tested performance, and reliable support for restoring accurate temperature feedback in compatible refrigeration systems.