Display shows EC1 and unit may run continuously or not maintain set temperature.

Safety: Disconnect power before accessing internal components.

• Access sensor: Locate the cabinet temperature sensor (thermistor) behind the interior liner, usually near the middle of the compartment or behind a small cover. Consult the Wolf model-specific diagram.
• Visual inspection: Check for pinched, cut, or chewed wires (rodent damage), and ensure the sensor bulb is intact and properly clipped to the liner or evaporator cover.
• Check connections: Follow the sensor harness to the control board. Reseat the connector and inspect for corrosion or loose pins.
• Test resistance: With the sensor disconnected and at room temperature (~77°F / 25°C), measure resistance with a multimeter. Compare to Wolf thermistor specs (typically around 10kΩ at 77°F; verify for your model). If reading is open, shorted, or far out of range, replace the sensor.
• Replace sensor if faulty: Remove mounting clip or cover, route the new thermistor along the same path, and avoid sharp bends. Reconnect to the control board.