Wine cooler display shows E1 and cabinet is not cooling properly or temperature is unstable.

Safety first: Unplug the wine cooler from the wall outlet before removing any panels. Do not work on the unit while it is energized.

Steps to diagnose and fix:

• 1. Power reset: Unplug the cooler for 5–10 minutes, then plug it back in. If E1 clears and does not return, it may have been a temporary logic fault.
• 2. Locate the cabinet thermistor: On most Kalamera wine coolers, the cabinet temperature sensor is a small probe or bullet-style sensor mounted on the rear interior wall or behind the inner liner, with two wires leading to the control board.
• 3. Inspect wiring and connector: Remove the interior shelves and any rear interior cover panel. Check the thermistor wires for cuts, pinches, or burn marks. Ensure the connector at the control board is fully seated and not corroded.
• 4. Test the thermistor: With the unit unplugged, disconnect the thermistor from the control board. Use a multimeter set to resistance (ohms). At room temperature (around 77°F / 25°C), most Kalamera NTC thermistors should read roughly 5k–10k ohms (exact value varies by model). If the reading is open (OL) or shorted (near 0 ohms), the sensor is bad.
• 5. Replace the thermistor: Order a replacement cabinet temperature sensor compatible with your Kalamera model. Route the new sensor along the original path, avoiding sharp bends or hot components. Secure it with clips or tape as originally installed and reconnect it to the control board.
• 6. Reassemble and test: Reinstall any interior panels and shelves. Plug the unit back in and monitor the display. The E1 code should clear within a few minutes; verify that the temperature begins to drop toward the setpoint.

When to call a technician: If the thermistor tests good but E1 persists, the main control board sensor circuit may be defective and should be diagnosed or replaced by a qualified technician.