Why Is My Fridge Making Noise?
All refrigerators make some noise — it's a normal part of how they operate. But certain sounds can indicate a problem. Here's how to tell the difference between normal refrigerator sounds and ones that need attention.
Normal Refrigerator Sounds
Humming
A steady, low hum is the compressor running. This is completely normal and expected. Modern inverter compressors vary their speed, so the hum may be quieter at some times than others. If the hum is consistent and not unusually loud, there is no cause for concern.
Clicking
A light clicking sound when the fridge starts or stops a cooling cycle is the compressor or thermostat switching on and off. This is normal. Some fridges also click when the ice maker operates or when plastic components expand and contract with temperature changes.
Gurgling or Bubbling
Liquid refrigerant moving through the cooling system makes a gurgling or bubbling sound. This is entirely normal and simply means the cooling system is working as designed.
Dripping
During defrost cycles, ice melts and drips into a drain pan underneath the fridge where it evaporates. A light dripping sound during and after defrost is normal.
Abnormal Sounds That Need Attention
Loud Rattling
Loud rattling often indicates something is vibrating against the fridge body. First, check that the fridge is level and not touching a wall or cabinet. Check that pots or other items on top are not vibrating. If the rattling continues, the condenser fan or evaporator fan may have an obstruction or be wearing out.
Buzzing or Grinding
A loud buzzing or grinding sound is often the condenser fan or evaporator fan struggling. The fans can accumulate ice, debris or suffer bearing wear. This should be investigated by a technician.
Knocking
Intermittent knocking can indicate a failing compressor or loose components within the compressor. If this is a new sound in an older fridge, have it inspected.
Hissing or Squealing
A hissing sound can indicate a refrigerant leak. If you notice the fridge is not cooling as well as it used to and you hear hissing, this is a serious issue requiring a qualified refrigeration technician.
When to Call a Technician
Call a technician if: the fridge is not maintaining temperature, the noise has changed suddenly and is getting louder, the noise is accompanied by ice build-up or water leaks, or the compressor is running constantly. For older fridges (10+ years), sometimes a repair cost approaches the cost of a replacement.
Need a New Fridge in Sydney?
Oceania Appliances stocks a range of fridges from Samsung, LG, Hisense, Haier, Westinghouse and Fisher & Paykel as ex-display and graded stock — many at significant discounts from full retail. Free delivery across Sydney. Contact us or visit our Wetherill Park showroom.