LG REFRIGERATOR KNOCK KNOCK X267SQCS

Description

Refrigerators are kind of like a library; they’re usually pretty quiet these days. An occasional whirr, thump, or hum is about all. So, noises can be alarming.

Let’s start with some normal knocking-type sounds. Knocking noises are a lot less common for a refrigerator than humming, but there are normal processes that cause them.

Ice cubes falling into the ice bucket will sound like a knocking noise.

The compressor starts and stops with perhaps a single knock.

If you have a dual evaporator system, you might hear the three-way valve cycling as it diverts refrigerant from the freezer evaporator (the cold thing in the freezer) to the fresh food compartment evaporator (which keeps the fresh food compartment cold).

Sometimes, the water dispenser can make a single knock when it starts or stops.

Some device or accessory may have been inadvertently turned on, like an ice maker that you don’t use and may not even have a water supply. It’s making a sound that is normal but abnormal to you.

There is a long video attached in the Additional Information section (link will open in a new tab) below from LG that goes into their refrigerator sound library. You might want to use it for confirmation.