F03
Hotpoint
Freezer Temperature Sensor (NTC) Fault
Freezer temperature display flashing, unit too warm, compressor cycles briefly then shuts off
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Possible Causes
Open-circuit freezer NTC sensor, Shorted freezer NTC sensor, Damaged sensor harness, Faulty main control board input
How to Fix / Troubleshooting
Safety first: Unplug the freezer before testing or replacing sensors. Avoid pulling on wires directly.
Steps:
- Locate the freezer sensor: On Hotpoint freezers, the NTC temperature sensor is usually clipped to the evaporator or mounted behind an interior wall cover near the top or rear.
- Access the sensor: Remove interior shelves and the relevant cover panel. Look for a small plastic probe with two wires leading to a connector.
- Test resistance: Disconnect the sensor from the harness. Using a multimeter set to kilo-ohms, measure resistance at room temperature (around 20–25°C). Typical NTC values are in the 5–20 kΩ range; consult the service sheet if available.
- Check for open/short: If the meter reads infinite (open) or near 0 Ω (short), the sensor is defective.
- Inspect wiring: Follow the harness back toward the control board, checking for pinched or broken wires.
- Replace the sensor: Install a new OEM Hotpoint freezer NTC sensor, routing the wires as originally and securing the probe in the same location for accurate readings.
- Reassemble and test: Refit panels, restore power, and monitor the temperature display for stable readings over several hours.
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Repair Difficulty
Easy
2/5
Required Part
Freezer Temperature Sensor (NTC Probe)
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