Dual-zone NewAir wine cooler shows E7; one or both zones may not cool correctly or may show dashes instead of temperature.

Safety: Unplug the cooler before removing interior panels or accessing the control board.

Steps to address E7 on dual-zone units:

• Identify affected zone: Confirm that E7 corresponds to the upper zone (refer to the user manual for your specific NewAir model). Note any abnormal temperature behavior in that zone.
• Locate the upper zone sensor: Inside the upper compartment, look for a small plastic cover or protruding sensor probe on the back or side wall. This is typically the upper zone thermistor.
• Inspect the sensor: Remove the cover if present and check that the sensor is intact and firmly mounted. Look for signs of moisture damage or physical breakage.
• Check wiring path: Follow the sensor wires as far as possible toward the rear or side of the cabinet. Ensure they are not pinched by shelves or panels.
• Access control board: Remove the rear or bottom service panel to reach the main control board. Identify the connector for the upper zone sensor (often labeled or color-coded).
• Reseat connector: With power disconnected, unplug and firmly reconnect the sensor plug to the board. Inspect for corrosion or bent pins.
• Test and replace if needed: If you can access the sensor leads, measure resistance at room temperature and compare to NewAir’s thermistor specs. Replace with a NewAir upper zone temperature sensor / thermistor if readings are out of range or if the sensor is physically damaged.
• Reassemble and test: Reinstall all panels, restore power, and verify that the E7 code clears and the upper zone displays and maintains the set temperature.

When to seek service: If a new sensor does not resolve E7, the issue may be with the dual-zone control circuitry on the main board, which should be diagnosed by a professional.