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Error code reference

Frigidaire Refrigerator Error Code FRENCH DOOR ICE ROOM SENSOR

Ice Room Sensor Error

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Ice Room Sensor Error - open or short-circuit, connector failure, or temperature reading greater than 122°F or less than -58°F.

First step from the service manual

Check the voltage at MAIN PCB Sensor between 4.5V~1.0V.

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

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  • Wiring diagram references and connector pinouts from the OEM service manual
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What FRENCH DOOR ICE ROOM SENSOR means on a Frigidaire refrigerator

The Ice Room Sensor error on a Frigidaire French Door refrigerator indicates a fault in the temperature sensor located inside the ice production compartment. This sensor monitors the thermal conditions within the ice room to ensure proper ice-making operation. The error triggers when the Main PCB detects that the sensor circuit is open or shorted, a connector has failed, or the sensor is returning a temperature reading outside its valid operating range, specifically above 122°F or below -58°F. These boundary values are outside the normal physical range of the ice room, so readings beyond them indicate a sensor or wiring problem rather than an actual temperature condition.

The diagnostic process begins at the Main PCB sensor connector, where voltage should measure between 4.5V and 1.0V under normal operating conditions. A reading outside this range points to a circuit fault. An open circuit typically drives the voltage to the high rail while a short circuit pulls it toward ground. Both conditions cause the PCB to flag the sensor as non-functional and display the error code. The sensor itself is a negative temperature coefficient thermistor, meaning its resistance decreases as temperature rises.

Common failure paths include damaged wiring harnesses that run through the freezer door or ice room compartment, corroded or unseated connector terminals at the PCB, and thermistor failure due to age or moisture intrusion. Because the ice room is subject to repeated freeze and thaw cycling, connectors in this circuit are particularly vulnerable to thermal stress and corrosion over time.

Source: manufacturer service documentation.

Common causes of FRENCH DOOR ICE ROOM SENSOR

  1. 01

    Faulty or failed ice room thermistor

    Part replacement

    The thermistor itself may have failed internally, causing an open or short circuit. This is identified by measuring resistance across the sensor leads and comparing to expected values for the current temperature.

  2. 02

    Loose or corroded connector at the Main PCB

    Wiring / connection

    The connector linking the ice room sensor to the Main PCB can loosen or corrode over time, interrupting the circuit. Inspect the connector for bent pins, corrosion, or poor seating and reseat or clean as needed.

  3. 03

    Damaged wiring harness

    Part replacement

    The wire harness running to the ice room sensor can become pinched, chafed, or broken, especially along routing paths that pass through door hinges or compartment walls. Visually trace the harness and use a continuity tester to locate breaks.

  4. 04

    Voltage out of range at Main PCB sensor port

    Wiring / connection

    If voltage at the Main PCB sensor connector falls outside the 4.5V to 1.0V operating range, the PCB is not receiving a valid signal. This can point to either a wiring fault or a failing PCB output.

  5. 05

    Main PCB failure

    Part replacement

    In cases where the wiring and sensor both test correctly, the Main PCB itself may be unable to properly read or process the sensor signal. This is a less common cause and should be diagnosed only after ruling out all wiring and sensor faults.

See the test procedure for each cause

Frequently asked questions about FRENCH DOOR ICE ROOM SENSOR

What does FRENCH DOOR ICE ROOM SENSOR mean on a Frigidaire refrigerator?
This error means the refrigerator's Main PCB has detected a problem with the temperature sensor inside the ice room compartment. The fault could be an open circuit, a short circuit, a failed connector, or a temperature reading outside the valid range of -58°F to 122°F. It is a wiring or component fault rather than an actual extreme temperature condition. Ice production is typically disrupted when this error is active.
Can I fix the Ice Room Sensor error myself on a Frigidaire French Door refrigerator?
Some causes of this error are DIY-friendly. Reseating a loose connector or inspecting the wiring harness for visible damage requires only basic tools and no special equipment. However, replacing the thermistor or Main PCB requires correct part identification and some comfort working with refrigerator electronics. Always unplug the refrigerator before inspecting or handling wiring and components.
Will resetting my Frigidaire refrigerator clear the Ice Room Sensor error?
A power reset may temporarily clear the error code, but it will return if the underlying fault is still present. The sensor circuit must measure within the valid voltage range of 4.5V to 1.0V at the Main PCB for the error to clear permanently. A reset is useful for confirming whether the fault is intermittent, but it does not fix wiring, connector, or thermistor problems.
Is it safe to keep using my refrigerator when the Ice Room Sensor error is displayed?
The refrigerator's main cooling functions may continue to operate, but ice production is likely to be impaired or stopped entirely while this fault is active. There is no immediate safety hazard from the error code itself, but leaving a sensor fault unaddressed for an extended period can lead to improper ice room temperature management. It is best to diagnose and repair the issue promptly to avoid further complications.
How much does it cost to repair the Ice Room Sensor error on a Frigidaire refrigerator?
Repair costs vary depending on what component has failed. A replacement ice room thermistor is generally an affordable part, typically in the range of $15 to $40. If the Main PCB requires replacement, costs rise significantly, often falling between $100 and $300 or more for the part alone. Adding professional labor can bring total repair costs to anywhere from $100 to $400 or higher depending on the technician and location.

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