E12
Hotpoint
Upper Zone Temperature Sensor Fault (Dual-Zone Models)
E12 error, dual-zone wine cooler shows incorrect temperature in one zone
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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 upper zone NTC sensor, Loose sensor connector on PCB, Sensor pulled out of its mounting clip, Damaged harness between zones
How to Fix / Troubleshooting
Safety: Disconnect power before accessing internal panels.
- Identify upper zone sensor: In dual-zone Hotpoint models, the upper compartment has its own sensor, usually on the rear or side wall.
- Inspect sensor and wiring: Check that the sensor is firmly attached and the cable is not pinched by shelves or bottles.
- Check connection at board: Access the control board and locate the connector labeled for the upper zone sensor. Reseat it securely.
- Test sensor resistance: With the unit unplugged, measure the sensor’s resistance and compare to the NTC chart. Replace if out of range.
- Replace upper zone sensor: Install a genuine Hotpoint upper zone NTC sensor, routing the cable along the original path.
- If E12 persists: The control board’s upper zone input may be defective and require professional replacement.
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Repair Difficulty
Medium
3/5
Required Part
Upper Zone NTC Temperature Sensor
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