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Error code reference

Sub-Zero Refrigerator Error Code 10 F 11

Short in Zone 4 evaporator thermistor.

Sub-Zero codesSub-Zero refrigerator codes
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What the 10 F 11 error code actually means

Your Sub-Zero refrigerator has detected a problem with a temperature sensor in one of its cooling zones, specifically a short circuit that is causing the sensor to send an incorrect reading to the control board. This prevents the refrigerator from accurately monitoring that section of the cooling system. A technician will need to test the sensor and its wiring to determine if the sensor itself or the wiring connecting it needs to be replaced.

Diagnostic procedure

The full 10 F 11 procedure

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1
First diagnostic step
Verify temperature reading, then ohm thermistor, confirm connection to the control board, replace thermistor if bad.
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Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Most common causes of 10 F 11

Ranked by how often they cause this code
  1. 1Failed evaporator thermistor
  2. 2Pinched or damaged wiring harness
  3. 3Moisture or ice intrusion at the connector
  4. 4Loose or corroded connector at the control board
  5. 5Faulty control board

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Questions people ask about 10 F 11

What does 10 F 11 mean on a Sub-Zero refrigerator?
Error code 10 F 11 indicates a short circuit in the Zone 4 evaporator thermistor circuit. The control board is detecting a resistance value that is outside the acceptable range for that temperature sensor, which prevents accurate monitoring of the evaporator in that zone. The fault could originate at the thermistor itself, the wiring harness, or the connector at the control board.
Is it safe to keep using my Sub-Zero refrigerator while error code 10 F 11 is active?
A shorted thermistor in Zone 4 means the control board is not receiving accurate temperature data for that section of the evaporator. This can affect the refrigerator's ability to regulate cooling properly in the affected zone, potentially leading to temperature inconsistencies. It is advisable to address the fault promptly to avoid food safety issues or further system strain.
How much does it cost to repair error code 10 F 11 on a Sub-Zero refrigerator?
Repair costs vary depending on what component is at fault. If only the Zone 4 evaporator thermistor needs replacement, parts and labor together typically range from around $100 to $300. If wiring repairs or a control board replacement are required, costs can be significantly higher, potentially ranging from $300 to $700 or more depending on the specific model and service rates in your area.
Can I fix error code 10 F 11 myself?
A knowledgeable DIYer can perform the basic diagnostic steps, including checking the temperature reading, inspecting wiring for visible damage, and using a multimeter to ohm-test the Zone 4 thermistor after disconnecting it. If the thermistor tests bad, replacing it is a relatively straightforward repair. However, if the control board is suspected or wiring repairs are needed inside the cabinet, professional service is recommended.
Will resetting the refrigerator clear error code 10 F 11?
A reset may temporarily clear the code from the display, but if the underlying fault in the thermistor circuit has not been corrected, the code will return once the control board re-evaluates the sensor. The root cause, whether a bad thermistor, damaged wiring, or poor connection, must be identified and repaired to permanently resolve the error.

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