Error code reference

LG Air Conditioner Error Code 150

Outdoor unit discharge superheat low: discharge superheat under 3°C (liquid back) for 5 minutes.

SourceLG Air Conditioner - Service Manual: R410A Refrigerantp. 102, 139

Diagnostic procedure

The full 150 procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

MyPros+ · DiagnosticsStep 1 preview

First diagnostic step

Check if there is an indoor unit leaking refrigerant (both pipe in/pipe out temp under 10°C during unit off at EEV 40 pls).

SourceLG Air Conditioner - Service Manual: R410A Refrigerantp. 102, 139

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Where this code is documented

31 manuals in the MyPros+ library document this code for LG air conditioner.

Models covered by the manuals that document this code

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The full 150 procedure

Where this code is documented

Models covered by the manuals that document this code

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