F2
Hisense
Lower Zone Temperature Sensor Fault
Display shows F2 and the lower zone of a dual-zone Hisense wine cooler does not regulate temperature correctly.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Failed lower zone NTC sensor, Loose or corroded connector, Damaged harness in lower cabinet, Faulty main control PCB
How to Fix / Troubleshooting
Disconnect power before working inside the cabinet. F2 typically refers to a lower-zone sensor error.
- Locate the lower zone sensor: It is usually on the rear liner of the lower compartment or attached to the lower evaporator cover.
- Inspect sensor and wiring: Remove the cover, check for physical damage, and ensure the sensor is properly clipped in place.
- Measure resistance: Compare the lower sensor resistance to the upper sensor at the same temperature. A large discrepancy indicates a faulty sensor.
- Replace sensor: Install a new Hisense lower-zone NTC sensor and route the harness along the original path.
If F2 remains after sensor replacement, the main control PCB may be at fault and should be checked by a technician.
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Repair Difficulty
Medium
3/5
Required Part
Lower Zone NTC Temperature Sensor
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