E5
Electrolux Ambient / Room Temperature Sensor Fault

Freezer shows E5 and may not maintain set temperature; compressor may short-cycle or run continuously.

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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 proper location, Damaged sensor harness in control housing, Faulty main control board sensor input

How to Fix / Troubleshooting

Safety first: Disconnect power before opening the control housing.

  • 1. Locate ambient sensor: On many Electrolux freezers, the ambient sensor is in the control panel area or behind the front grille, sensing room temperature.
  • 2. Inspect sensor and mounting: Ensure the sensor is not touching hot components and is not covered by insulation or debris.
  • 3. Test resistance: With the freezer unplugged, disconnect the sensor and measure resistance at room temperature. Compare to the NTC chart in the service manual. Replace if open, shorted, or out of spec.
  • 4. Check harness: Inspect and test continuity from the sensor to the main control board. Repair any breaks or corrosion.
  • 5. Replace control board if needed: If the sensor and wiring are good but E5 persists, replace the main control board.
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Repair Difficulty

Medium 3/5

Required Part

Ambient NTC Temperature Sensor
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