F3
Zanussi
Ambient / Room Temperature Sensor Fault
F3 code; freezer may show incorrect temperature or fail to maintain setpoint.
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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 ambient NTC sensor, Sensor dislodged from mounting, Wiring harness damage, Control board sensor circuit fault
How to Fix / Troubleshooting
Safety: Disconnect power before accessing control housings.
- Locate ambient sensor: Often positioned near the top of the cabinet or behind the control panel, sensing room temperature.
- Check mounting: Ensure the sensor is not hanging loose inside the cabinet, which can cause false readings.
- Test resistance: Measure the NTC resistance at room temperature and compare with Zanussi specs.
- Replace sensor: If readings are out of range, install a new ambient temperature sensor.
- Inspect control board: If sensor and wiring are correct, suspect the main control PCB.
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Repair Difficulty
Medium
3/5
Required Part
Ambient Temperature Sensor (NTC)
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