This occurs because the gasket (rubber material around inner perimeter of the door) is sealing very tightly. This noise will stop in a few days once the gasket becomes more pliable. Water lines supplying water to the refrigerator may make a loud bang due to a condition called "water hammer".
Thermal Expansion: When the refrigerant rapidly expands or contracts, it can create a popping or banging noise. This is often normal but can be more pronounced if the fridge is not level.
Condenser Coils: Dust or dirt on the coils can cause the fridge to work harder and make noises. Clean them with a vacuum or brush. Fans: Inspect and clean the evaporator and condenser fans if accessible. If the noise comes from the back and seems to be the compressor, it may be working too hard or malfunctioning.
It appears that the loud popping noise is caused by the expansion of the evaporator tubing during the time that the temperature of the fridge is initially stabilizing to the temperature you set, and then most people report the noise goes away or greatly diminishes.
If the capacitor is bad, the compressor may fail to start or run inconsistently. You might hear clicking or buzzing sounds as the system struggles to engage.
If your refrigerator is buzzing near consistently or all the time, the compressor might be the problem. A quick test you can try is to unplug the fridge and then plug it back in after about 5 minutes.
Clanking and banging can mean a loose piston pump, crankshaft or connecting rod in the compressor. Bubbling and hissing can indicate a refrigerant leak. Usually the louder the hissing, the worse the leak. Buzzing noises can mean that the motor is failing.
A faulty compressor may produce a humming, buzzing, or clicking sound. Condenser fan motor: The condenser fan motor helps dissipate heat generated by the compressor. If the motor is damaged or has worn bearings, it can produce a rattling or grinding noise when the refrigerator is running.
However, refrigerator compressors last eight to 10 years, so consider springing for the extra money to replace them as they approach the end of their life span.
Not all fridge noises are normal. Some of these noises may be an indication of a fault inside your fridge's mechanics and this may be a cause for concern. For example, if your noisy fridge is making sounds such as a scraping or grinding noise, this could be a fault with the compressor and should not be ignored.
The compressor on your fridge is designed to keep the appliance at the correct temperature. If you notice your fridge is making a 'whirring' noise for extended periods of time, your compressor is simply working harder to keep it at the right temperature.
A hum or a slight buzz is typical, but if your refrigerator starts making strange or loud noises, the compressor might be struggling. Professional Repair Required: Compressors have numerous components, and diagnosing the source of the noise can be complicated.
With the fridge unplugged, spin the fan blade with your hand to see if it's operating smoothly. Check wires, grommets, and other components for signs of wear and tear. If the fan blade doesn't move freely or there are other signs of damage or corrosion, it may be necessary to replace the fan and surrounding parts.
Your fridge shouldn't sound like a bird or small critter is trapped inside. If your fridge making noise sounds like squealing or chirping, it may mean the evaporator fan is malfunctioning. If something is wrong with the refrigerator fan, the freezer won't cool adequately, says Rogers.
According to the United States Department of Energy, refrigerators last approximately 12 years. At that point, it's likely time to replace it. Of course, if your refrigerator is not energy-efficient, you may want to consider replacing it before it stops working.
CHECK THE CONDENSER FAN. Certain types of refrigerators use condenser fans to force air through the condenser coils and create that all-important cooling effect. If that fan malfunctions, it's more than likely that the compressor will eventually overheat. That's when you'll hear it clicking off and clicking on again.
For example, refrigerator compressor repair cost will run between $200 and $450. Common refrigerator problems include water or refrigerant leaking from the appliance, loud noises coming from the refrigerator, overly high energy bills, uneven cooling, and the appliance simply refusing to cool at all.
The condenser fan might be faulty
This fan helps to keep the coils cool and sometimes it can become frosted over or obstructed which can cause a knocking sound to emit from your fridge. When this happens your fridge might need to be left to defrost or the fan motor might even need to be replaced.
A broken or worn-out evaporator, condenser or compressor fan can cause your fridge to make a high-pitched squealing sound. Often, an obstructed motor shaft is to blame for the noise. Another clue that your evaporator fan could be to blame is a fridge that doesn't cool properly or a compressor that runs constantly.
Replacing and even repairing a refrigerator compressor should ALWAYS be performed by a qualified technician. Not only are you dealing with just simple electrical wiring, but potentially dangerous refrigerant as well, which needs to be handled with the proper equipment.
Banging from the compressor is a sign of loose parts inside the compressor, such as a piston pin or connector rod, as well as parts on the outside of the compressor.
If, on inspection, you hear chattering, whining, squealing, chirping, or rattling sounds coming from the AC compressor, it is time for AC service. Sometimes the commotion only erupts when you engage the AC switch. Some noises remain constant. Compressor noises result from either a faulty clutch or a seizing shaft.