ErrorCodeDoctor
LG · Refrigerator (Side-by-Side)

LG Refrigerator (Side-by-Side) 33 error code

Difficulty: Hard · Cost: $100–$400 · Duration: Requires professional service

The 33 error means your LG refrigerator has detected a problem with the compressor relay. This is similar to the 22 error but represents a different fault condition within the relay or compressor circuit. The compressor relay controls power delivery to the compressor — when it fails the compressor cannot run and the refrigerator stops cooling completely. There are no user steps to resolve this error and the unit requires a professional repair service.

Common causes

  • Compressor relay has malfunctioned or failed
  • Electrical fault in the compressor relay circuit
  • Compressor has developed a fault causing the relay to register an error

How to fix it

  1. 1

    There are no user-serviceable steps for this error

  2. 2

    Unplug the refrigerator to prevent further damage to the compressor

  3. 3

    Contact a qualified technician to inspect and replace the compressor relay

Related LG Refrigerator (Side-by-Side) error codes

1

OF F

Demo mode is active — all cooling has been disabled

easy
2

FS

The freezer temperature sensor has a short circuit or disconnection

hard
3

rS

The refrigerator temperature sensor has a short circuit or disconnection

hard
4

dS

The defrost sensor has a short circuit or disconnection

hard

33 error — frequently asked questions

What does the 33 error mean on a LG refrigerator (side-by-side)?

A fault was detected in the compressor relay

What causes the 33 error?

The 33 error is usually caused by: Compressor relay has malfunctioned or failed; Electrical fault in the compressor relay circuit; Compressor has developed a fault causing the relay to register an error.

Can I fix the 33 error myself?

This is rated a hard fix — it often requires tools, parts, or experience, and may be safer left to a professional technician.

How much does it cost to fix the 33 error?

Fixing the 33 error on a LG refrigerator (side-by-side) typically costs $100–$400, depending on parts and whether you do it yourself or hire a technician.

Is it safe to keep using my refrigerator (side-by-side) with the 33 error?

We'd recommend addressing the 33 error before continuing to use the refrigerator (side-by-side), since hard-rated issues often involve a real fault rather than a minor glitch.