Lo
NEEDONE Minimum Temperature Limit / Sensor Out-of-Range

Display shows Lo and the cooler does not respond to lower temperature settings.

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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

Temperature sensor reading below expected range, Sensor shorted, Control board firmware limit reached, Ambient temperature too low

How to Fix / Troubleshooting

Safety first: Unplug the cooler before accessing internal components.

  • Check ambient temperature: Ensure the cooler is not installed in a very cold environment (below manufacturer minimum). Move it if necessary.
  • Verify setpoint range: Confirm that you are not trying to set a temperature below the unit's design limit. Refer to the user manual for allowed ranges.
  • Inspect sensor: If Lo persists, inspect the relevant compartment sensor for damage or moisture as in E1/E2 procedures.
  • Replace sensor or board: A shorted sensor or faulty control board can cause Lo. Replace the defective part with a NEEDONE-compatible component.
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Repair Difficulty

Medium 3/5

Required Part

Compartment Temperature Sensor
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