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Error code reference

GE Refrigerator Error Code E3

Evaporator thermistor "sensor B" fault (out-of-range).

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What the E3 error code actually means

Your GE refrigerator is showing E3 because the temperature sensor near the evaporator coil, which is the part that actually cools the air inside, is sending a reading that doesn't make sense to the control board. This could mean the sensor itself has gone bad or a wire connecting it has become loose or damaged. Try resetting the error first, but if it keeps coming back, a repair technician will need to take a closer look.

Diagnostic procedure

The full E3 procedure

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1
First diagnostic step
Clear the code by holding ON/OFF and pressing SET 4 times. If the error reappears, contact dealer or Viking Customer Service for qualified technician.
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Most common causes of E3

Ranked by how often they cause this code
  1. 1Failed evaporator thermistor (sensor B)
  2. 2Loose or disconnected wiring harness connector
  3. 3Corroded or damaged wiring terminals
  4. 4Broken or pinched sensor wire
  5. 5Control board fault

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Questions people ask about E3

What does E3 mean on a GE refrigerator?
E3 indicates that the evaporator thermistor, called sensor B, is producing a reading outside the expected range. This sensor monitors the temperature of the evaporator coil and feeds that data to the control board. The fault can point to a failed sensor, a damaged wire, or a loose connector in the sensor circuit. If the code persists after a reset, a qualified technician should diagnose the root cause.
Will resetting the refrigerator clear the E3 code?
Resetting can clear the E3 code if the fault was a temporary sensor glitch. To reset, hold the ON/OFF button and press SET four times. If the underlying problem, such as a failed thermistor or damaged wire, is still present, the code will reappear shortly after being cleared. A persistent E3 after reset means the fault needs hands-on diagnosis.
How much does it cost to repair a GE refrigerator E3 error?
Repair costs depend on what is actually causing the fault. Replacing an evaporator thermistor is generally a relatively affordable repair, with parts and labor typically ranging from around $100 to $250 depending on your location and the technician's rates. If the control board is the source of the problem, costs can be higher, often in the $200 to $500 range including parts and labor.
Can I fix the E3 error on my GE refrigerator myself?
The first step you can take yourself is clearing the code by holding the ON/OFF button and pressing SET four times. If the code comes back, the repair involves checking thermistor resistance values and inspecting wiring inside the unit, which requires technical knowledge and the correct tools. Most homeowners will need a qualified appliance technician for anything beyond the reset procedure.
Is it safe to keep using my refrigerator when E3 is displayed?
An E3 fault means the control board is not receiving reliable temperature data from the evaporator sensor, which can affect how well the refrigerator manages its defrost cycle and cooling performance. Food safety may be at risk if cooling is compromised. It is best to address the fault promptly rather than continuing to run the unit with an active sensor error.

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