Digital Westinghouse upright freezer beeps and displays E1; temperature may not match setpoint.

Safety first: Unplug the freezer from the wall outlet before removing any panels. Use insulated tools and avoid working on live circuits.

Step-by-step checks:

• Power cycle the unit: Unplug the freezer for 5 minutes, then plug it back in. If E1 returns after a few minutes, continue.
• Locate the cabinet sensor: On most Westinghouse uprights, the cabinet NTC is clipped to the liner wall behind a small plastic cover or routed behind the evaporator cover inside the freezer.
• Inspect the sensor and wiring: Remove the inner cover carefully. Look for a small probe with two wires. Check for cuts, pinched sections, ice damage, or corroded connectors. Reseat any plug connections firmly.
• Test the sensor with a multimeter: Disconnect the sensor from the harness. Measure resistance at room temperature (around 20–25°C). A typical Westinghouse NTC will read between 5–20 kΩ. If it reads 0 Ω (short) or OL (open), the sensor is faulty.
• Check continuity of the harness: With the unit still unplugged, test from the sensor connector to the control board connector for each wire. Replace or repair any open or shorted wire.
• Replace the sensor if defective: Install a new OEM Westinghouse cabinet temperature sensor (NTC). Route the wiring exactly as original and secure it away from sharp metal and moving parts.
• If sensor and wiring test good: The fault is likely in the main control board. Inspect the board for burnt spots or corrosion. If present, replace the electronic control module.

When to stop: If you are not comfortable removing inner panels or testing live circuits, contact a qualified appliance technician.