Which refrigerator clicking, bubbling, and humming sounds can be normal?

Some of those sounds can occur during normal operation, but the sound alone cannot confirm that your refrigerator is working normally. GE’s guide identifies clicking when controls or a defrost timer switch, boiling or gurgling from refrigerant circulation, and changes in fan speed as possible normal sounds. The guide is model-dependent, so use the guidance for your refrigerator rather than treating every click, bubble, or hum as harmless. [S1]

The supplied sound-guide extract does not establish that every hum is normal or identify every possible cause. Record what you hear and when, rather than guessing at an explanation.

Start with whether the sound is familiar or newly occurring, and describe it without guessing at a cause. GE notes that a newly occurring or concerning noise may need service diagnosis. It also says a fan-blade-like sound from the freezer is not normal and should be referred for service; a newly occurring tapping sound, or one from an older refrigerator, may also need diagnosis. [S1] [S2]

Those examples are not a complete sound-identification chart. If what you hear does not clearly match model-specific guidance, record it and seek service guidance rather than assuming it is harmless.

Make a short sound log as soon as practical. Capture the sound in your own words, its location, and when you noticed it. If you know your model, include it so you can compare the noise with its specific guidance. A recording may help you describe the sound, but do not rely on it to diagnose the refrigerator.

Copy and fill in this template:

Refrigerator sound log

1. Date and approximate time: [date, time]
2. Sound: [click / bubbling or gurgling / hum / other words]
3. Where it seems loudest: [freezer / refrigerator compartment / other or unsure]
4. What was happening when noticed: [brief observation, or unsure]
5. Familiar or new: [familiar / newly noticed / unsure]
6. How it changes: [starts, stops, changes, or continues; describe only what you observe]
7. Model information, if available: [model number]
8. Question for service: [what you want help assessing]

Yes. This is an invented example of how to record observations, not a diagnosis:

1. Date and approximate time: [Tuesday, about 7 p.m.]
2. Sound: [intermittent bubbling, followed by a low hum]
3. Where it seems loudest: [near the refrigerator compartment; unsure]
4. What was happening when noticed: [noticed while in the kitchen; no other detail recorded]
5. Familiar or new: [newly noticed this week]
6. How it changes: [bubbling stops; hum continues briefly, then is no longer noticeable]
7. Model information, if available: [model number]
8. Question for service: [Does this description match the sound guidance for this model, or should it be assessed?]

The useful part is the observed sequence and the fact that it seems new—not a guessed explanation. Because GE says new or concerning noise may need service diagnosis, use the model-specific guide or share your notes with a service professional if you are concerned. [S1]

Describe the sound and its location in your log, and check the guidance for your exact model. Do not automatically classify a freezer sound as normal just because some clicking can be normal: GE’s unusual-noises guidance says a fan-blade-like sound from the freezer is not normal and should be referred for service. It also notes that newly occurring tapping may need service diagnosis. [S2]

If you cannot tell whether the noise resembles those examples, say so when asking for service advice. The supplied excerpts do not establish the cause of a particular refrigerator’s sound or provide a way to diagnose it from a description alone.