Frigidaire Gallery Refrigerator Error Code 5B: How to Fix It

Medium 30-60 minutes Medium Severity Verified July 2026
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Error Code
5B
Brand
Xbox
Product Type
game_platform
Severity
Medium
DIY Difficulty
Medium
Estimated Fix Time
30-60 minutes
The Frigidaire Gallery refrigerator error code 5B indicates a fault with the ice maker thermistor — a small temperature sensor that monitors the ice maker compartment. When this sensor fails or sends a reading outside the expected range, the refrigerator displays 5B and may stop producing ice. In most cases, the thermistor itself needs to be tested and replaced, which is a manageable DIY repair with basic tools.
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Tools You'll Need

How to Fix Error Code 5B

  1. Power Cycle the Refrigerator

    Never skip the power cycle step — working on the refrigerator while it is plugged in can cause electric shock or damage the control board.

  2. Locate the Ice Maker Thermistor

  3. Inspect the Thermistor Wiring and Connector

    Ensure the refrigerator is unplugged before touching any wiring or electrical components.

  4. Test the Thermistor Resistance with a Multimeter

    Always disconnect the component from the circuit before measuring resistance with a multimeter to get an accurate reading and avoid damaging the meter.

  5. Replace the Ice Maker Thermistor

    Handle the thermistor probe gently — bending or cracking the sensor tip will cause it to fail immediately.

  6. Clear the Error Code and Test Ice Production

  7. Inspect the Ice Maker Control Board (If Error Persists)

Parts You May Need

Ice maker thermistor (temperature sensor)
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Ice maker wire harness
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Ice maker control board
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When to Call a Professional

Call a certified appliance repair technician if: the error code persists after replacing the thermistor and inspecting all wiring; you find evidence of a burned or shorted control board; you are uncomfortable working with electrical components; or if your refrigerator is still under warranty (DIY repairs may void coverage). A professional can also use manufacturer-specific diagnostic tools to read live sensor data, which is not possible with a standard multimeter.

Frequently Asked Questions

What does error code 5B mean on a Frigidaire Gallery refrigerator?
Error code 5B on a Frigidaire Gallery refrigerator indicates a fault with the ice maker thermistor. This small temperature sensor monitors the ice maker compartment, and the code appears when the sensor reads an out-of-range temperature or sends no signal to the control board at all.
Can I still use my refrigerator when it shows error code 5B?
Yes, the refrigerator's main cooling functions typically continue to operate normally when error 5B is displayed. However, ice production will be disrupted or stopped entirely until the thermistor fault is resolved.
How much does it cost to replace a Frigidaire ice maker thermistor?
A replacement ice maker thermistor for a Frigidaire Gallery refrigerator typically costs between $10 and $35 for the part alone. If you hire a technician, expect to pay an additional $75–$150 in labor, making total professional repair costs roughly $100–$200 depending on your region.
Will unplugging my Frigidaire refrigerator reset the 5B error code?
A power cycle (unplugging for 5 minutes) may temporarily clear the 5B code if it was caused by a minor sensor glitch. However, if the thermistor is physically damaged or failed, the code will return once the refrigerator powers back up and the control board re-reads the faulty sensor.
How do I find my Frigidaire Gallery refrigerator's model number to order the right thermistor?
Your Frigidaire Gallery model number is printed on a label typically located on the inside wall of the fresh food compartment, near the top or along the door frame. It usually starts with letters such as 'FGHB' or 'FGHN' followed by numbers. Use this full model number when searching for a compatible replacement thermistor to ensure the correct fit.

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