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Error code reference

GE Refrigerator Error Code 0008

FZ Icemaker Thermistor reading out of range (if applicable)

GE codesGE refrigerator codes
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What the 0008 error code actually means

Your refrigerator's control board is detecting a problem with a small sensor that measures the air temperature around the outside of the fridge. This sensor, called the ambient thermistor, is sending a reading that falls outside the normal expected range, which usually means the sensor itself has failed or there is a wiring issue connecting it to the control board. The refrigerator flagged this error to let you know it may not be accurately tracking surrounding temperatures, which can affect how well it regulates cooling.

Diagnostic procedure

The full 0008 procedure

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1
Confirm the fault
Power cycle the unit: switch off the breaker for 60 seconds, then restore power. If the code returns, the fault is persistent and the procedure below isolates the cause.
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Most common causes of 0008

Ranked by how often they cause this code
  1. 1Failed ambient temperature thermistor
  2. 2Damaged or disconnected wiring harness to the thermistor
  3. 3Corroded or loose connector pins
  4. 4Faulty main control board

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Questions people ask about 0008

What does error code 0008 mean on a GE refrigerator?
Code 0008 means the control board has detected that the ambient temperature thermistor is sending a reading outside its valid resistance range. This thermistor measures the air temperature around the outside of the refrigerator. The fault can be caused by a bad thermistor, damaged wiring, or a loose connector.
Can I still use my GE refrigerator when code 0008 is showing?
In most cases the refrigerator will continue to cool with code 0008 active, but its ability to adapt to ambient temperature changes is compromised. If your refrigerator is in a garage or a room with temperature extremes, food safety risks increase because the board is operating without reliable ambient data. Addressing the fault promptly is advisable rather than running the unit indefinitely in this condition.
How do I test the ambient thermistor on a GE refrigerator showing code 0008?
Unplug the refrigerator, disconnect the ambient thermistor connector, and measure resistance across the two thermistor terminals with a multimeter. At room temperature, around 70 degrees Fahrenheit, most GE ambient thermistors read approximately 10,000 to 16,000 ohms, but check your specific model's tech sheet for the exact value. A reading of zero ohms indicates a short, while a reading of infinite resistance indicates an open circuit. Either result confirms the thermistor needs replacement.
How do I fix error code 0008 on a GE refrigerator?
Start by locating the ambient thermistor, usually near the control board or fresh food section, and check its connector for corrosion or loose pins. Use a multimeter to measure the thermistor's resistance and compare it to the specification in your model's tech sheet, typically found behind the lower kickplate. If resistance is out of range, replace the thermistor. If the sensor tests good, inspect the wiring harness for breaks before considering a control board replacement.
How much does it cost to fix GE refrigerator error code 0008?
If only the ambient thermistor needs replacement, the part typically costs between $15 and $40, and a confident DIYer can replace it in under an hour using basic tools. If a technician does the repair, expect a service call plus one hour of labor, bringing the total to roughly $100 to $200 depending on your area. A control board replacement, if needed, costs significantly more, with parts ranging from $100 to $300 plus labor.

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