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Error code reference

GE Ice Maker Error Code LED flashes 2 times

Bin thermistor not detected during Clean/Diagnostics cycle.

GE codesGE ice maker codes

Bin thermistor not detected during Clean/Diagnostics cycle.

First step from the service manual

Check bin thermistor connection and test thermistor resistance.

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

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What LED flashes 2 times means on a GE ice maker

The 2-flash LED code on a GE ice maker indicates that the control board failed to detect a valid signal from the bin thermistor during a Clean or Diagnostics cycle. The bin thermistor is a temperature-sensing resistor mounted in the ice storage bin area. Its job is to monitor bin temperature so the ice maker knows when the bin is full of ice and when production should pause or resume. When the control board polls this sensor during a diagnostic sequence and receives no reading, an open circuit, or a resistance value outside the expected range, it flags the 2-flash fault.

The bin thermistor operates as a negative temperature coefficient (NTC) resistor, meaning its resistance decreases as temperature rises. A properly functioning thermistor will produce a specific resistance reading at a given temperature. If the thermistor circuit is broken due to a disconnected harness plug, damaged wiring, or a failed thermistor itself, the board interprets this as an absent or invalid sensor and triggers the fault code. The diagnostic cycle is specifically designed to confirm all sensors are present and responding before the unit proceeds through a cleaning or test sequence.

Diagnosis should begin at the thermistor connector. Inspect the harness plug at the thermistor for corrosion, bent pins, or a loose fit and reseat it firmly. Then disconnect the thermistor and measure its resistance with a multimeter. Compare the reading against the temperature-to-resistance specification for the unit. If resistance reads open (infinite) or significantly out of range, the thermistor has failed and requires replacement. If resistance is within spec, trace the wiring back to the control board for harness damage or a failed board connection.

Source: manufacturer service documentation.

Common causes of LED flashes 2 times

  1. 01

    Disconnected or loose thermistor connector

    Wiring / connection

    The harness plug connecting the bin thermistor to the wiring harness may have come loose, especially after cleaning or servicing. Reseating the connector firmly is the first step and resolves the fault in many cases.

  2. 02

    Failed bin thermistor

    Part replacement

    The thermistor itself may have failed internally, producing an open circuit or a resistance value far outside the normal range. Testing with a multimeter and comparing to the temperature-resistance specification will confirm this.

  3. 03

    Damaged wiring harness

    Part replacement

    The wires between the thermistor and the control board can develop breaks, kinks, or corrosion, particularly near routing points or connectors. Inspect the full length of the harness for visible damage or continuity failures.

  4. 04

    Corroded or damaged connector pins

    Wiring / connection

    Moisture inside the ice maker compartment can corrode the thermistor connector pins over time, increasing resistance in the circuit or breaking the connection entirely. Inspect the plug for green or white oxidation on the terminals.

  5. 05

    Faulty control board

    Part replacement

    If the thermistor and all wiring test correctly, the control board's thermistor input circuit may have failed. This is the least common cause and should only be considered after all other components are confirmed good.

See the test procedure for each cause

Frequently asked questions about LED flashes 2 times

What does LED flashes 2 times mean on a GE ice_maker?
A 2-flash LED code on a GE ice maker means the control board could not detect the bin thermistor during a Clean or Diagnostics cycle. The bin thermistor is a temperature sensor in the ice storage bin that the machine uses to monitor bin conditions. This fault is triggered when the sensor is missing from the circuit, disconnected, or returning a reading outside the expected resistance range. The machine halts the cycle until the sensor issue is resolved.
How do I fix the 2-flash LED code on my GE ice maker?
Start by locating the bin thermistor connector and checking that it is fully seated with no bent or corroded pins. If the connection looks secure, use a multimeter to test the thermistor's resistance and compare it to the specification for your model at a known temperature. If the resistance is open or far out of range, replace the thermistor. If the thermistor tests good, inspect the wiring harness for breaks and check the control board connection.
Is it safe to keep using my GE ice maker when it shows the 2-flash code?
The ice maker will typically not complete its Clean or Diagnostics cycle while this fault is active, which means it may also interrupt normal ice production depending on the model. Continuing to run the unit without resolving the fault is not recommended, as the bin thermistor plays a role in production control. There is no immediate safety hazard, but ice output will likely be unreliable until the sensor issue is corrected.
Will resetting my GE ice maker clear the 2-flash LED code?
A reset may temporarily clear the fault display, but the code will return the next time the unit runs a Clean or Diagnostics cycle if the underlying sensor problem has not been fixed. The control board re-checks the bin thermistor at the start of each diagnostic sequence, so a reset alone is not a repair. The thermistor connection and resistance must be tested and corrected to permanently clear the code.
How much does it cost to repair the 2-flash LED code on a GE ice maker?
If the fix is simply reseating a loose connector, there is no parts cost involved. A replacement bin thermistor typically costs in the range of $15 to $50 depending on the model. If the wiring harness needs repair or replacement, parts and labor can bring the total to $75 to $200 or more. A control board replacement, if required, is the most expensive scenario and can range from $150 to $400 or higher for parts and labor.

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