E8
CELLA
Lower Zone Temperature Sensor Fault (Dual-Zone Models)
E8 error on display, lower zone temperature not controlled correctly on dual-zone models
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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, Sensor knocked out of position by bottles, Broken sensor harness, Faulty lower zone input on main PCB
How to Fix / Troubleshooting
Safety: Unplug the unit before removing any interior panels.
- Access lower sensor: Remove lower zone shelves and the rear interior panel. Locate the lower zone temperature sensor probe.
- Check for displacement: Ensure the sensor has not been pulled out of its holder by bottle contact. Reinsert and secure it if necessary.
- Inspect wiring: Examine the sensor cable for cuts or pinches, especially where it passes through the liner. Reseat the connector on the harness and main board.
- Test sensor: Use a multimeter to measure resistance and compare to CELLA's NTC chart. Replace the lower zone NTC temperature sensor if out of spec.
- Control board: If a new sensor does not clear E8, the lower zone circuit on the main control board may need replacement.
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Repair Difficulty
Medium
3/5
Required Part
Lower Zone NTC Temperature Sensor
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