Display shows E2 and the wine cooler may run continuously or shut down prematurely.

Safety: Unplug the wine cooler before removing the control panel or any covers. Avoid pulling on wires directly; use the connectors.

Steps to resolve E2:

• Confirm installation environment: Ensure the cooler is not installed in extreme temperatures (e.g., garages below 50°F or above 90°F), as this can confuse ambient sensing. If environment is acceptable, continue.
• Locate the ambient sensor: On many EdgeStar wine coolers, the ambient thermistor is located near the front intake grille or behind the control panel, sensing room air.
• Inspect sensor and mounting: Check that the sensor is not blocked by dust, debris, or insulation. Make sure it is not touching hot components or the condenser coil.
• Check wiring: Follow the sensor leads to the control board. Look for pinched, cut, or chewed wires (rodent damage). Verify the connector is fully seated on the board.
• Test the sensor: With power disconnected, measure resistance across the sensor leads and compare to expected NTC values. If the reading is open, shorted, or far out of range, the sensor is defective.
• Replace the ambient sensor: Install a new EdgeStar-compatible ambient temperature sensor. Route the wiring away from hot or moving parts and secure with cable ties.
• If sensor tests good: The control board may misinterpret the signal. Replace the main control board if no wiring issues are found.

Tip: After repair, monitor the display to ensure the unit responds appropriately to room temperature changes and that E2 does not reappear.