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Error code reference

GE Refrigerator Error Code 25

The resistance of the ice tray sensor is outside the normal range (< 660 Ohms)

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The resistance of the ice tray sensor is outside the normal range (< 660 Ohms). Sensor hot.

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 25 means on a GE refrigerator

GE refrigerator error code 25 indicates that the ice tray sensor is reading a resistance value below 660 Ohms, which falls outside the acceptable operating range. This low resistance reading signals that the sensor is detecting an abnormally high temperature condition, often described as the sensor being "hot." The ice tray sensor is a thermistor, a resistive temperature device whose resistance decreases as temperature increases. When resistance drops below the 660 Ohm threshold, the control module interprets this as a fault condition and triggers the error code.

The primary diagnostic approach involves two steps: inspecting the physical connections between the sensor and the control module, then measuring the sensor's actual resistance with a multimeter. A loose, corroded, or damaged connector can create abnormal resistance readings even if the sensor itself is functioning correctly. If the wiring and connections appear intact, the sensor element itself may be faulty, either due to physical damage, moisture intrusion, or component degradation over time.

In some cases, the surrounding environment of the ice tray can also contribute to the fault. Excessive heat near the ice maker compartment, caused by a failing defrost system or poor airflow, can push the sensor's actual temperature high enough to produce a legitimate low-resistance reading. This means the sensor may be reporting accurately, but the root cause is a thermal problem elsewhere in the ice maker system.

Source: manufacturer service documentation.

Common causes of 25

  1. 01

    Loose or corroded sensor connector

    Wiring / connection

    A poor connection at the module can create abnormal resistance readings that mimic a faulty sensor. Inspect the connector pins and harness at the control module for corrosion, looseness, or bent terminals.

  2. 02

    Failed ice tray thermistor

    Part replacement

    The thermistor itself may have degraded or shorted internally, causing its resistance to drop below the 660 Ohm minimum. Confirm by measuring resistance directly across the sensor leads with a multimeter.

  3. 03

    Damaged wiring harness

    Part replacement

    A pinched, frayed, or shorted wire between the sensor and the control module can cause artificially low resistance readings. Visually inspect the harness for damage along its entire length.

  4. 04

    Elevated ice maker compartment temperature

    Wiring / connection

    If the area around the ice tray is genuinely overheating due to a defrost system issue or blocked airflow, the sensor may be producing an accurate but out-of-range reading. Check for frost buildup or airflow obstructions near the ice maker.

See the test procedure for each cause

Frequently asked questions about 25

What does 25 mean on a GE refrigerator?
Error code 25 on a GE refrigerator means the ice tray sensor is reading a resistance below 660 Ohms, which indicates the sensor is detecting a higher-than-normal temperature. This can be caused by a faulty sensor, a wiring problem, or a genuine heat issue in the ice maker compartment. The refrigerator flags this code because the ice maker cannot operate safely or accurately without a properly functioning sensor.
How do I fix error code 25 on my GE refrigerator?
Start by checking the sensor's wiring connections at the control module for looseness or corrosion and reseat them if needed. Next, use a multimeter to measure the ice tray sensor's resistance. If the reading is below 660 Ohms and the connections are secure, the thermistor likely needs to be replaced. If resistance looks normal, investigate whether the ice maker area is overheating due to airflow or defrost issues.
Will resetting my GE refrigerator clear error code 25?
A reset may temporarily clear the code, but it will return if the underlying problem is not addressed. The control module will re-evaluate the sensor resistance each time it runs its diagnostics. A permanent fix requires correcting the wiring connection, replacing the sensor, or resolving any thermal issue causing the elevated temperature reading.
Is error code 25 on a GE refrigerator a safety concern?
Error code 25 is primarily a functional issue affecting the ice maker rather than a safety hazard to your home. However, it does mean the ice maker may stop producing ice or operate incorrectly. If the root cause is an overheating condition inside the freezer compartment, it is worth diagnosing promptly to prevent further component damage.
How much does it cost to repair error code 25 on a GE refrigerator?
If the fix is simply reseating a loose connector, there may be no parts cost at all. Replacing an ice tray thermistor typically involves parts costs in the range of $15 to $50, plus any labor if a technician performs the repair. If the issue stems from a larger problem such as a defrost system failure, total repair costs could range from $100 to $300 or more depending on what components are involved.

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