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41

4 flashes, 1 beep - D-pipe Sensor INV. (Open/Short)

LG · Air Conditioning

What does 41 mean?

This indicates an issue with the discharge pipe sensor on the inverter model. The sensor is either disconnected (open) or has a short circuit, preventing accurate temperature readings.

Common Causes

  • Discharge pipe sensor (Inverter) is Open/Short circuit

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Turn off the power to the unit.

  2. 2

    Inspect the discharge pipe sensor wiring for damage or loose connections. Ensure it is properly plugged in.

  3. 3

    Carefully unplug and then firmly reconnect the sensor.

  4. 4

    If the error persists, the sensor itself may be faulty and require replacement by a technician.

Browse all codes in this manual (97)
Verified technical data. Last updated: April 2026

Related Faults

01Error 01 - Indoor air sensor open or short circuit02Error 02 - Inlet pipe sensor open or short circuit03Error 03 - Communication error between indoor unit and wired remote
Source: LG Air Conditioning
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