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Error code reference

U-Line Refrigerator Error Code 2 Flashes

Open thermistor or out of range (too warm) problem on CLR2060 new control board.

U-Line codesU-Line refrigerator codes

Open thermistor or out of range (too warm) problem on CLR2060 new control board.

First step from the service manual

Check thermistor plug connection to control board; replace thermistor if failed open.

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

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What 2 Flashes means on a U-Line refrigerator

The 2 Flashes error code on a U-Line CLR2060 refrigerator signals an open thermistor condition or an out-of-range temperature reading on the new control board. The thermistor is a temperature-sensing resistor whose resistance value changes predictably with temperature. When the control board reads a resistance value that falls outside the expected range, typically indicating an open circuit or an excessively warm cabinet, it triggers the 2 Flashes fault sequence. This alert is specific to the CLR2060 control board platform and indicates the board is not receiving a valid temperature signal from the thermistor.

The most common root cause is a failed thermistor that has gone open, meaning the circuit is broken internally and no resistance value can be measured. This can result from physical damage to the sensor, moisture intrusion, or component degradation over time. A loose or corroded plug connection at the control board can produce the same symptom by interrupting the signal path without any actual failure of the thermistor itself.

Diagnosing this fault starts with inspecting the thermistor plug connection at the control board for corrosion, bent pins, or a loose fit. If the connection is secure, the thermistor should be tested with a multimeter to verify its resistance falls within the expected range for the current ambient temperature. An open circuit reading confirms thermistor failure and requires replacement. If the thermistor tests within spec, the control board itself may be the source of the fault.

Source: manufacturer service documentation.

Common causes of 2 Flashes

  1. 01

    Failed open thermistor

    Part replacement

    The thermistor has internally broken its circuit, producing an open reading that the control board interprets as an out-of-range fault. Testing with a multimeter will show no resistance or infinite resistance, confirming the sensor must be replaced.

  2. 02

    Loose or disconnected thermistor plug

    Wiring / connection

    The thermistor connector at the control board may have worked loose or pulled out, interrupting the signal without any damage to the thermistor itself. Inspecting and reseating the plug is the first step in diagnosis.

  3. 03

    Corroded thermistor connector

    Wiring / connection

    Moisture exposure can corrode the pins or terminals at the thermistor plug, increasing contact resistance enough to push the reading out of the acceptable range. Cleaning the connector contacts or replacing the harness section may resolve the fault.

  4. 04

    Thermistor wiring damage

    Part replacement

    The wiring between the thermistor and the control board may be pinched, cut, or broken, creating an open circuit. Visually tracing the wire harness for damage and checking continuity with a multimeter will identify this issue.

  5. 05

    Faulty control board

    Part replacement

    If the thermistor and all wiring connections test correctly, the CLR2060 control board itself may have a defective input circuit that is misreading or failing to register the thermistor signal. Board replacement is required if all other components check out.

See the test procedure for each cause

Frequently asked questions about 2 Flashes

What does 2 Flashes mean on a U-Line refrigerator?
On a U-Line CLR2060 refrigerator, 2 Flashes indicates an open thermistor condition or an out-of-range temperature reading on the control board. The thermistor is a resistive temperature sensor, and the board triggers this code when it cannot detect a valid resistance signal. This typically means the thermistor has failed open or its connector has come loose at the board.
How do I fix the 2 Flashes error on my U-Line refrigerator?
Start by checking the thermistor plug connection at the control board and reseating it firmly. If the connection is secure, test the thermistor with a multimeter for continuity and proper resistance. An open circuit reading means the thermistor needs to be replaced. If the thermistor tests correctly, the control board may need to be inspected or replaced.
Is it safe to keep using my U-Line refrigerator while it shows the 2 Flashes error?
Operating the unit while this fault is active is not recommended for food safety purposes, because the refrigerator cannot accurately monitor or regulate its internal temperature without a functioning thermistor. Perishable food stored inside may be at risk if the cooling system is not responding correctly. Addressing the fault promptly is the safest course of action.
How much does it cost to fix the 2 Flashes error on a U-Line refrigerator?
If the fault is simply a loose plug connection, there may be no parts cost at all beyond a service call. A replacement thermistor typically costs in the range of $20 to $60 depending on the part. If the control board is the source of the fault, board replacement can range from $150 to $400 or more for parts alone, plus labor.
Will resetting my U-Line refrigerator clear the 2 Flashes error?
A power reset may temporarily clear the fault display, but the 2 Flashes code will return if the underlying problem with the thermistor or its connection has not been corrected. Resetting the unit does not repair a failed thermistor or a loose connector. The error will continue to appear until the defective or disconnected component is properly repaired or replaced.

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