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Error code reference

Frigidaire Ice Maker Error Code 2 blinks

Bin thermistor is out-of-range (senses temperature outside 25-140°F), all loads shut off and unit will not…

Frigidaire codesFrigidaire ice maker codes

Bin thermistor is out-of-range (senses temperature outside 25-140°F), all loads shut off and unit will not run.

First step from the service manual

Test the bin thermistor resistance and compare with Table C; replace if out of specification.

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

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What 2 blinks means on a Frigidaire ice maker

The 2 blinks error code on a Frigidaire ice maker indicates that the bin thermistor is reading a temperature outside its valid operating range of 25 to 140 degrees Fahrenheit. The bin thermistor is a negative temperature coefficient (NTC) sensor positioned to monitor the ice bin temperature, and its resistance output is used by the control board to determine when the bin is full and when ice production should cycle on or off. When the control board receives a signal that falls outside the expected resistance range corresponding to 25-140°F, it interprets this as a sensor fault and shuts down all loads to prevent erroneous operation.

When this fault is active, the unit will not run in any capacity. Compressor, fan motors, and water fill solenoids are all disabled until the fault condition is resolved. This is a protective lockout designed to prevent ice from being made under unmonitored conditions. The diagnostic process begins with measuring the bin thermistor resistance and comparing the reading against the temperature-resistance table (Table C in the relevant documentation) to determine if the sensor is within specification for the ambient temperature at the time of testing.

Common causes include a failed thermistor that has drifted out of its resistance curve, a wiring harness problem such as an open circuit or short to ground, or a poor connector connection at either the thermistor or the control board. In some cases, the thermistor itself is physically intact but has been displaced from its mounting position, causing it to read ambient air rather than bin temperature and producing an out-of-range signal.

Source: manufacturer service documentation.

Common causes of 2 blinks

  1. 01

    Failed bin thermistor

    Part replacement

    The thermistor itself has failed and its resistance no longer follows the expected temperature-resistance curve in Table C. This is the most common cause and is confirmed by measuring the thermistor resistance and finding it out of spec for the current temperature.

  2. 02

    Open circuit in thermistor wiring

    Wiring / connection

    A break in the wiring between the bin thermistor and the control board causes the board to see an infinite or out-of-range resistance value. Inspect the harness for damaged, pinched, or corroded wires along the entire run.

  3. 03

    Loose or corroded connector

    Wiring / connection

    A poor connection at the thermistor plug or at the control board connector can cause an intermittent or out-of-range signal. Unplug and reseat both ends of the thermistor connector and check for corrosion or bent pins.

  4. 04

    Thermistor displaced from mounting position

    Wiring / connection

    If the thermistor has come loose from its bracket or clip inside the bin, it may read ambient room temperature instead of bin temperature, producing a value outside the 25-140°F operating range. Verify the sensor is properly seated in its mounting location.

  5. 05

    Faulty control board

    Part replacement

    If the thermistor resistance tests within specification and the wiring and connectors check out, the control board input circuit for the thermistor signal may have failed. This is the least common cause and should be diagnosed only after all other components are confirmed good.

See the test procedure for each cause

Frequently asked questions about 2 blinks

What does 2 blinks mean on a Frigidaire ice_maker?
Two blinks on a Frigidaire ice maker indicates a bin thermistor fault. The control board has detected a temperature reading from the bin thermistor that falls outside the valid range of 25 to 140 degrees Fahrenheit. As a result, all loads are shut off and the unit will not produce ice until the fault is corrected.
Can I fix the 2 blinks error myself?
Some causes of this error are DIY-friendly. You can inspect the thermistor wiring harness for damage, check that all connectors are fully seated, and verify the thermistor is properly mounted in the bin. If you have a multimeter, you can measure the thermistor resistance and compare it to the temperature-resistance table to confirm whether the sensor has failed. Replacing a bin thermistor is a straightforward repair for someone comfortable working with appliances.
Is it safe to use the ice maker while it shows the 2 blinks error?
The machine will not operate while the 2 blinks fault is active, so there is no risk of it producing ice under faulty conditions. The lockout is intentional and the unit is safe to leave powered while you diagnose the problem. Do not attempt to bypass the fault to force operation.
How much does it cost to repair the 2 blinks error on a Frigidaire ice maker?
If the bin thermistor itself has failed, the part typically costs somewhere in the range of $15 to $50 depending on the model, making it one of the lower-cost repairs on an ice maker. If the issue is a wiring problem or loose connector, the repair cost may only involve a service call fee. A control board replacement, if needed, is considerably more expensive, often ranging from $100 to $250 or more for parts alone.
Will resetting the ice maker clear the 2 blinks error code?
A power reset may temporarily clear the error display, but if the underlying fault with the bin thermistor or its wiring is still present, the code will return as soon as the control board runs its diagnostics again. The error will only be permanently cleared once the defective component is repaired or replaced and the thermistor is reading within the valid 25-140°F range.

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