Wine cooler displays EC24 and may show erratic or incorrect temperature readings; cooling may cycle improperly.

Safety first: Disconnect power before removing panels or handling wiring. Avoid pulling on wires directly.

Step 1 – Confirm symptom

• Compare displayed temperature to an accurate digital thermometer placed in the middle of the wine compartment.
• If the display is far off (more than 5–10°F) or fluctuates wildly, the thermistor may be faulty.

Step 2 – Locate the thermistor

• Remove shelves to access the interior side walls or back wall.
• Look for a small plastic sensor cover or bump where the thermistor is mounted.
• Remove the cover screws and gently pull the sensor out enough to inspect the wiring.

Step 3 – Inspect and reseat connections

• Check the thermistor leads and connector for corrosion, broken insulation, or loose pins.
• Reseat the connector firmly to ensure a solid electrical connection.
• Restore power and see if EC24 clears after a few minutes of operation.

Step 4 – Replace the thermistor if needed

• If EC24 returns or the temperature reading remains inaccurate, replace the compartment thermistor with a Sub‑Zero compatible sensor.
• Route the new sensor along the original path, avoiding sharp bends or pinching behind panels.
• Secure the sensor in the original location and reinstall the cover.

Step 5 – Control board check

• If a new thermistor does not resolve EC24, the main control board’s sensor input circuit may be defective.
• Further diagnosis requires specialized tools and is best handled by a professional.