LO
Challenge Low Temperature Lockout

Display shows LO and dehumidifier does not start the compressor.

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Possible Causes

Room temperature below minimum operating range, ambient sensor reading too low due to placement or fault

How to Fix / Troubleshooting

Steps:

  • Check room temperature: If the room is below about 5–10°C, move the unit to a warmer location.
  • Allow warm-up: Leave the unit unplugged in a warmer room for 30–60 minutes, then plug in and test.
  • Inspect ambient sensor: If LO appears in a warm room, check and replace the ambient temperature sensor (NTC) as described in the E1/F2 procedures.
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Repair Difficulty

Easy 2/5

Required Part

Ambient Temperature Sensor (NTC)
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