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Error code reference

GE Refrigerator Error Code 24

The resistance of the ice tray sensor is outside the normal range (> 45K Ohms)

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The resistance of the ice tray sensor is outside the normal range (> 45K Ohms). Sensor cold.

First step from the service manual

Check the connections of the sensor at the module. Check the resistance of the sensor.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What 24 means on a GE refrigerator

GE refrigerator error code 24 indicates that the ice tray sensor is reading a resistance value greater than 45K ohms, which places it outside the acceptable operating range. The control module monitors this thermistor continuously to track the temperature of the ice tray and coordinate the harvest cycle. When resistance climbs above the threshold, the module interprets the condition as the sensor being abnormally cold or as an open circuit in the sensor circuit.

Thermistors used in ice tray applications are NTC (negative temperature coefficient) devices, meaning their resistance increases as temperature drops. A reading above 45K ohms suggests the sensor is either experiencing an extremely cold condition, has developed an open circuit, or has failed internally. Loose or corroded connector pins at the control module are a frequent culprit, as even minor oxidation can introduce enough resistance to push the reading out of range.

The first diagnostic steps are to inspect the sensor's wiring harness connections at the module for looseness, corrosion, or damage, and then to measure the sensor's actual resistance with a multimeter. If the resistance measured directly at the sensor leads is greater than 45K ohms under normal ambient conditions, the sensor itself has likely failed and requires replacement. If resistance reads correctly at the sensor but not at the module connector, the fault lies in the wiring between those two points.

Source: manufacturer service documentation.

Common causes of 24

  1. 01

    Loose or corroded sensor connector at the module

    Wiring / connection

    The connector pins linking the ice tray sensor to the control module can loosen or oxidize over time, adding unwanted resistance to the circuit. Inspect the connector for any signs of corrosion, bent pins, or incomplete seating.

  2. 02

    Failed ice tray thermistor

    Part replacement

    The thermistor itself can fail internally, causing its resistance to rise above 45K ohms even at normal temperatures. Measuring resistance directly at the sensor leads with a multimeter will confirm whether the sensor has failed.

  3. 03

    Damaged wiring harness

    Part replacement

    The wiring between the ice tray sensor and the control module may be pinched, broken, or have a compromised insulation point that creates an open or high-resistance circuit. Visually trace the harness and check for chafing or breaks.

  4. 04

    Actual extreme temperature condition in the ice tray area

    Wiring / connection

    If the freezer compartment is running significantly colder than normal due to a separate fault, the sensor may be producing a legitimately high resistance reading. Verify freezer temperature with an independent thermometer before condemning the sensor.

See the test procedure for each cause

Frequently asked questions about 24

What does 24 mean on a GE refrigerator?
Error code 24 on a GE refrigerator indicates the ice tray sensor is reading a resistance greater than 45K ohms, which is outside the normal operating range. The control module flags this condition as the sensor being abnormally cold or as a potential open circuit. This fault can disrupt the ice maker's harvest cycle because the board cannot accurately determine ice tray temperature. Diagnosing it starts with checking the sensor's connector at the module and measuring the sensor's resistance directly.
Can I fix error code 24 on my GE refrigerator myself?
A knowledgeable DIYer can start by unplugging the refrigerator, locating the ice tray sensor connector at the control module, and inspecting it for looseness or corrosion. Reseating a loose connector sometimes clears the fault without any parts. If the sensor itself measures above 45K ohms at room temperature, replacing the thermistor is a straightforward repair, though it does require identifying the correct replacement part for your specific model.
Will resetting my GE refrigerator clear error code 24?
A power reset may temporarily clear the error code display, but if the underlying fault is still present, the code will return once the control module re-evaluates the sensor circuit. Resetting is useful as a quick check after reseating a connector, but it does not substitute for actual diagnosis and repair of the sensor or wiring.
Is error code 24 on a GE refrigerator a safety concern?
Error code 24 is primarily a functional issue affecting the ice maker rather than a safety hazard. The refrigerator's cooling system for food storage typically continues to operate normally. However, leaving the fault unaddressed means ice production will be unreliable or may stop entirely.
How much does it cost to repair error code 24 on a GE refrigerator?
If the fix is simply reseating a loose connector, there is no parts cost involved. If the ice tray thermistor needs to be replaced, parts typically range from $15 to $50 depending on the model, and a professional technician's labor for this repair generally adds $75 to $150 to that total. Costs will be higher if the wiring harness or control module is also damaged.

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