Wine cooler displays E1 and will not cool or shows erratic temperature readings.

Safety first: Unplug the Hoover wine cooler from the mains before removing any panels. Do not work on live circuits.

Steps to check and address E1:

• Power reset: Disconnect power for 5–10 minutes, then reconnect. If E1 clears temporarily and returns, the sensor or wiring is likely faulty.
• Locate the cabinet sensor: Inside the wine compartment, look for a small plastic probe or a sensor behind a vent grille (usually on the rear or side wall). On some Hoover models, the sensor wiring passes through the rear liner to the main PCB.
• Inspect the sensor and wiring: Check for cuts, pinched cable, or signs of moisture ingress. Gently tug the connector to ensure it is firmly seated on the sensor and on the main control board.
• Test the NTC thermistor (if you have a multimeter): With the unit unplugged, disconnect the sensor from the PCB and measure resistance at room temperature. Typical NTC values are in the 5–20 kΩ range at 25°C (consult the Hoover service sheet if available). An open circuit (OL) or 0 Ω indicates a failed sensor.
• Clean and reseat connectors: If there is light corrosion, clean the pins with electrical contact cleaner, allow to dry, and reconnect firmly.
• Replace the sensor if faulty: If resistance is out of spec or intermittent when you gently flex the cable, replace the cabinet temperature sensor (NTC) with a Hoover-compatible part. Route the new sensor along the original path and secure it away from moving parts or sharp edges.
• If E1 persists: After replacing the sensor, if E1 still appears, the main control PCB may be misreading the sensor and require replacement by a qualified technician.